Creating the ideal fan cave setup often revolves around finding the right projector to deliver immersive visuals. The Missyou 19.7 Inch 3DHologram Fan stands out for its eye-catching holographic effects, perfect for display and novelty. For true home theater quality, the XGIMI Horizon Pro offers 4K resolution and built-in Harman Kardon speakers, balancing picture quality with audio. Meanwhile, the AuKing Mini Projector provides a budget-friendly, versatile option for casual viewing. However, choosing the perfect setup involves tradeoffs between image quality, size, ease of use, and cost. Continue reading for a detailed breakdown of these options and what suits your specific fan cave needs.
Key Takeaways
- Top holographic fans like Missyou excel at visual novelty but lack true video playback capabilities.
- The XGIMI Horizon Pro offers a balanced mix of 4K clarity, sound, and ease of setup for dedicated home theaters.
- Mini projectors like AuKing deliver affordability and portability but compromise on brightness and image size.
- Outdoor and multi-purpose setups require features like auto keystone, auto focus, and higher lumens for flexibility.
- The best setup depends heavily on your primary use—whether for casual viewing, immersive gaming, or eye-catching displays.
More Details on Our Top Picks
Missyou 19.7 Inch 3DHologramFan Holographic Projector with WiFi APP Bluetooth Remote Control LED Display Includes 700 3D Videos for Trade Shows Retail Stores Exhibitions and Events
This hologram fan stands out for its eye-catching floating visuals that add depth and motion to any indoor promotional environment. Unlike traditional projectors like the XGIMI Horizon Pro, which focus on high-resolution images, this device excels at creating attention-grabbing 3D visuals that are ideal for retail counters and trade show booths. Its support for WiFi app control and a library of 1500 videos make content management straightforward, but setup can be tricky if software compatibility issues arise—though tech support is highly responsive. The fan’s safety cover and remote control enhance usability in busy environments. Compared with smaller holographic displays, its size and content flexibility make it more suitable for larger, attention-demanding setups. However, it’s best suited to businesses that want to make a visual impact rather than for casual or occasional use.
Pros:- Creates highly attention-grabbing 3D floating visuals
- Supports WiFi app control and Bluetooth audio pairing
- Includes a large library of ready-to-play videos
Cons:- Setup can be complicated due to software compatibility issues
- Requires indoor environment with stable power and space
Best for: Retailers and event marketers seeking impressive, floating holographic displays to attract customers.
Not ideal for: Home users or casual event hosts who prefer simple, plug-and-play solutions without complex setup.
- Size:19.7 inches
- Connectivity:WiFi, Bluetooth
- Video Library:1500+ videos
- Power:12V DC, 50W
- Mounting:Wall mount
- Display Type:3D holographic fan
Bottom line: This hologram fan is ideal for businesses that want to elevate their visual advertising with dynamic, floating effects.
XGIMI Horizon Pro 4K Projector, 1500 ISO Lumens, Android TV 10.0 Movie Projector with Integrated Harman Kardon Speakers, Auto Keystone Screen Adaption Home Theater Projector
Compared to the Missyou hologram fan, which excels at eye-catching static displays, the XGIMI Horizon Pro offers stunning 4K resolution and room-filling sound that makes it perfect for serious home theater setups. Its 1500 lumens and HDR10 support ensure vibrant, detailed images even in less-than-ideal lighting. The auto keystone correction and auto focus make setup quick and hassle-free, a clear advantage over the more complex hologram fan installation. While it doesn’t provide floating visuals, its integrated Harman Kardon speakers and Android TV interface deliver a seamless entertainment experience. It’s less suited for small spaces with ambient light or for those prioritizing interactive displays, but it’s perfect for viewers who want cinematic quality. The tradeoff is a higher price point and larger footprint.
Pros:- Stunning 4K resolution with HDR support
- Automatic keystone correction and focus
- Built-in Harman Kardon speakers
Cons:- Requires a dark room for best image quality
- Larger size and higher cost compared to basic projectors
Best for: Home theater enthusiasts seeking a high-quality, easy-to-set-up projector with excellent image and sound.
Not ideal for: Small spaces or environments requiring attention-grabbing signage rather than cinematic viewing.
- Resolution:3840 x 2160 (4K)
- Brightness:1500 lumens
- Speakers:Harman Kardon, 2 x 8W
- Input:HDMI, USB, Android TV
- Auto Features:Keystone, focus
- Size:Large
Bottom line: This projector is perfect for serious home cinema setups that prioritize picture quality and sound, not floating visuals.
AuKing Projector, 2026 Upgraded Mini Projector, Full HD 1080P Home Theater Video Projector, Compatible with HDMI/USB/AV/Smartphone/TV Box/Laptop
This compact projector offers a versatile, budget-friendly option for those wanting a large screen experience on the go. Its full HD 1080P resolution and up to 200-inch projection size make it suitable for casual movie nights or outdoor gatherings. Unlike the larger, more complex XGIMI Horizon Pro, the AuKing is much easier to set up and transport, ideal for spontaneous movie sessions or outdoor setups. Its 55,000 hours bulb life and low noise fan increase longevity and comfort during extended use. However, its brightness and contrast are limited compared to high-end home theater projectors, which can impact image clarity in brighter environments. It’s less suitable for dedicated home theaters but shines as a portable, easy-to-use option.
Pros:- Compact, portable design
- Full HD 1080P resolution with large projection size
- Long bulb life and quiet operation
Cons:- Limited brightness makes it less effective in ambient light
- Image quality not as sharp as high-end projectors
Best for: Outdoor movie lovers and casual users seeking portable, easy-to-set-up projection.
Not ideal for: Bright rooms or dedicated home theater environments where high brightness and contrast are required.
- Resolution:1080P
- Projection Size:35-200 inches
- Brightness:Hides in brighter rooms
- Lamp Life:55,000 hours
- Connectivity:HDMI, USB, AV, Smartphone
- Size:Very portable
Bottom line: This mini projector is ideal for portable indoor and outdoor entertainment, especially for casual viewing.
Mini Projector, ELEPHAS Portable Projector for iPhone, 7000L with Synchronize Smartphone Screen, Movie Projector with 1080P HD/200 Screen Support, Compatible with Android/iOS/TV Stick/HDMI/USB/SD
The ELEPHAS Mini Projector combines portability with decent image quality, making it a good choice for impromptu outdoor or indoor viewing sessions. Its size, comparable to a smartphone, makes it much more portable than the XGIMI Horizon Pro or even the AuKing, but it sacrifices some brightness and clarity. Its 7000 lumens and 1080P support help produce clear images on screens up to 200 inches, but ambient light can diminish the picture, similar to the AuKing. The built-in HIFI speaker and multiple port options add convenience, while the included tripod enhances setup flexibility. It’s less suitable for dedicated home theater environments but excels in casual, mobile contexts—ideal for camping, outdoor parties, or quick setups.
Pros:- Extremely portable and lightweight
- Supports 1080P HD and large screens
- Multiple input options including HDMI and USB
Cons:- Lower brightness may affect outdoor viewing in daylight
- Image quality can be impacted by ambient light
Best for: Outdoor enthusiasts and casual viewers needing a highly portable projection option.
Not ideal for: Dark room home theater setups or environments demanding high brightness and optimal image quality.
- Brightness:7000 lumens
- Resolution:1080P
- Screen Size:Supports up to 200 inches
- Connectivity:HDMI, USB, AV, Smartphone
- Size:Pocket-sized
- Built-in Speaker:Yes
Bottom line: This portable mini projector is perfect for on-the-go entertainment and outdoor use, with some limitations in bright environments.
GooDee Video Projector With Wifi And Bluetooth, Smart Portable Projector Movie System Compatible With Netflix/Dolby Audio/Auto Focus & Keystone, 4k Video Decode & 1080p Native For Home Theater/Outdoor
The GooDee AC321 offers a compelling mix of streaming capabilities, smart features, and portability. Unlike the XGIMI Horizon Pro, which emphasizes cinematic resolution, this model focuses on versatility with built-in WiFi, Bluetooth, and a preloaded app store, making it easier to access streaming services like Netflix without additional devices. Its 4K decoding and 1080P native resolution ensure sharp images, complemented by auto focus and keystone correction that simplify setup. The built-in Dolby Audio enhances sound quality, but it may not match dedicated high-end speakers for immersive sound. While it’s portable and suitable for outdoor use, its brightness may fall short in well-lit environments, making it better suited for dark rooms or outdoor evenings.
Pros:- Supports 4K decoding with 1080p native resolution
- Built-in WiFi, Bluetooth, and streaming apps
- Auto focus and keystone correction for quick setup
Cons:- Brightness may be insufficient in bright environments
- Audio quality, while good, isn’t a replacement for dedicated speakers
Best for: Users seeking a portable, smart projector with streaming and Dolby audio for indoor and outdoor entertainment.
Not ideal for: Bright rooms or users demanding ultra-bright images for daytime outdoor viewing.
- Resolution:1080P native, 4K decoding
- Brightness:Supports 1500 ISO lumens
- Connectivity:WiFi, Bluetooth, HDMI
- Auto Features:Focus, keystone
- Sound:Dolby Audio
- Size:Portable
Bottom line: This smart portable projector offers streaming and auto features ideal for versatile home or outdoor use, with some limitations in ambient light.
Auto Focus/Dolby Audio Smart Projector with WiFi and Bluetooth, DBPOWER Projector Built-in Apps, Native 1080P, Auto 6D Keystone, Zoom 50%, Upgraded Fan Cooling for Outdoor Movie Home Theater
This projector stands out for its combination of native 1080P resolution, fast auto-focus, and built-in streaming apps, making it an excellent choice for those wanting a versatile, plug-and-play fan cave setup. Compared with the Rossetta Galaxy Projector, it offers sharper image quality and better connectivity options, but it trades off portability for size and complexity. Its dual-band WiFi 6 ensures smooth streaming, even during intensive gaming or movie marathons, while the Dolby Audio and Bluetooth 5.2 support provide immersive sound. The 6D keystone correction and zoom feature offer flexible placement options, crucial for fan caves with limited space. However, its larger footprint and more complex setup might deter beginners or those seeking a portable unit. Overall, this makes the most sense for dedicated enthusiasts who want a high-performance, smart projector with excellent connectivity and sound.
Pros:- Native 1080P resolution delivers sharp, clear images
- Fast auto-focus and 6D keystone correction simplify setup
- Built-in apps for seamless streaming without external devices
- WiFi 6 dual-band ensures smooth streaming and mirroring
Cons:- Relatively large and may require a dedicated space
- Higher price point compared to basic projectors
- Setup complexity might challenge beginners
Best for: Home theater enthusiasts seeking a high-quality, feature-rich smart projector for outdoor or large fan cave setups.
Not ideal for: Small spaces or portable setups where size and ease of use are priorities, or users on a tight budget.
- Native Resolution:1080P
- WiFi:WiFi 6 dual-band
- Audio:Dolby Audio, Bluetooth 5.2
- Keystone Correction:Auto 6D
- Zoom:50%
- Fan Cooling:Upgraded silent cooling
Bottom line: Ideal for dedicated fan caves where top-tier image quality, smart features, and immersive audio are desired.
Rossetta Star Projector, Galaxy Projector for Bedroom Nebula Night Light Projector with White Noise, Bluetooth Speaker, Timer and Remote, Kids Room Decor, Birthday, Party, Gifts for Kids Teens Adults
This device excels at creating an ambient atmosphere with its vibrant nebula clouds, star projections, and white noise, making it perfect for a cozy fan cave or bedroom retreat. Unlike the DBPOWER projector, it prioritizes mood and visual relaxation over high-resolution imaging, but it compensates with Bluetooth sound and customizable lighting. Its remote control and timer add convenience, and FCC, RoHS, and CE certifications ensure safety for all ages. While it doesn’t replace a dedicated home theater projector, it offers an engaging, soothing visual experience for casual movie nights or relaxing space themes. The small footprint and user-friendly interface make it accessible for all levels of users, especially families or casual fans looking to add a space vibe. However, it lacks true high-definition picture quality, limiting its use for serious movie watching.
Pros:- Vibrant star and nebula projections in 14 colors
- Built-in white noise and Bluetooth speaker support
- Remote control and auto-off timer for ease of use
- Safe for all ages with certifications
Cons:- Limited resolution not suitable for detailed images
- Smaller projection area, less suitable for large rooms
- Primarily mood lighting rather than a true projector
Best for: Families or casual fans wanting an immersive, relaxing space-themed environment with sound and mood lighting.
Not ideal for: Serious cinephiles or those needing a high-resolution, large-screen setup for fan caves focused on movies or gaming.
- Projection Colors:14
- White Noise:10 sounds
- Bluetooth:Built-in
- Timer:1-2 hours
- Resolution:Not HD
- Power:Corded
Bottom line: Perfect for creating a relaxing, atmospheric corner in a fan cave or bedroom, especially for space and star lovers.
3D Hologram Fan Projector HD LED Holographic Christmas Tree Advertising Display with Remote Bluetooth WiFi 1500 Video Library for Business Bar Halloween
This hologram fan excels in dynamic visual advertising with its high-resolution 2000×1444 LED display and 1500+ video library, making it a standout for commercial-grade fan caves or event spaces. Compared to the Missyou MS50D2, it offers more extensive control via WiFi, Bluetooth, and app, plus support for splicing multiple units for large displays. Its plug-and-play design allows quick setup, vital for mobile or temporary setups. The vivid 3D floating illusions draw immediate attention, ideal for retail or promotional environments. However, its primary focus on advertising means it’s less suited for casual home use, and its size and complexity might be overkill for smaller fan caves. The safety caution regarding high-speed blades is also important to consider for unattended areas.
Pros:- High-resolution 2000×1444 display with vivid colors
- Supports WiFi, Bluetooth, and app control
- Large video library with 1500+ videos
- Supports multi-unit splicing for bigger displays
Cons:- Primarily designed for professional advertising, not casual use
- Size and complexity may be challenging for beginners
- High-speed rotating blades require safety precautions
Best for: Retailers, bars, or event organizers wanting eye-catching 3D holographic displays in fan caves or commercial environments.
Not ideal for: Home users or casual fans seeking simple, affordable projection solutions for entertainment.
- Resolution:2000×1444
- Brightness:3000 lumen
- Video Library:1500+” videos
- Connectivity:WiFi, Bluetooth, App control
- Size:16.5 inches
- Control Methods:Remote, app
Bottom line: Best suited for commercial or promotional fan cave environments where high-impact visual advertising is needed.
Missyou 3DHologramFan MS50D2 19.7 Inch, LED Holographic Projector with WiFi Bluetooth Remote, 528 Highlight LEDs, 1500+ Videos, for Store Display Events Exhibition Wall Mount
This 19.7-inch holographic fan combines high-quality LED display with a broad video library, making it ideal for retail, exhibitions, or event fan caves. Its 528 high-brightness LEDs create crisp, vivid 3D floating images that attract attention instantly. The support for WiFi, Bluetooth, and remote control simplifies content management, and the included 700 videos offer immediate engagement. Compared to the 3D Fan Projector HD LED, it provides a more user-friendly interface and better control options, though it’s less suitable for large-scale outdoor displays. Its wall-mount capability makes it easy to position in limited fan cave space. The main tradeoff is that it’s primarily meant for static advertising or display rather than cinematic viewing.
Pros:- Large 19.7 inch display with 528 LEDs
- Supports WiFi, Bluetooth, and remote control
- Includes 700 preloaded videos for instant use
- Wall-mountable and portable
Cons:- Primarily designed for static advertising, not home theater
- Size may be challenging for small fan caves
- Requires WiFi setup and app control
Best for: Retail spaces, trade shows, or dedicated fan cave displays focused on vibrant visual marketing.
Not ideal for: Casual home users or those seeking a traditional home theater setup.
- Display Size:19.7 inches
- LED Count:528
- WiFi/Bluetooth:Supported
- Video Library:1500+ videos
- Control:WiFi, Bluetooth, Remote
- Mounting:Wall mount
Bottom line: Excellent for retail or event-oriented fan caves where eye-catching digital signage is a priority.
3D Hologram Fan Projector for Store Trade Show Display, 276 LED High Resolution WiFi App Control Bluetooth Audio Holographic Display, Quiet Bearing with Safety Cover Holiday Tech Gift(9.84inch)
This hologram fan excels at creating eye-catching, large-scale displays, making it ideal for trade shows or bustling fan cave setups where attracting attention is key. Compared with the smaller 42CM 3D Hologram Fan, this model offers a higher LED count and more versatile installation options, including wall mounting and tripod use, which makes it more adaptable for permanent or semi-permanent setups. Its silent bearing technology ensures the visuals won’t be overshadowed by noise, a step up from less advanced fans that can be distracting. However, the tradeoff is that this unit is bulkier and more complex to set up, requiring more space and planning. Its app control and multi-unit splicing capabilities unlock impressive customization for immersive displays, but they demand a higher technical comfort level. This pick makes the most sense for dedicated enthusiasts or commercial users seeking a scalable, professional hologram setup for their fan cave.
Pros:- High resolution with 276 LEDs for vivid, sharp visuals
- Multi-unit splicing allows for large, synchronized displays
- WiFi app control simplifies content management
Cons:- Relatively large and requires ample space for installation
- More complex setup process compared to smaller, simpler fans
Best for: Business owners or serious enthusiasts aiming for large, synchronized holographic displays within their fan cave.
Not ideal for: Casual users seeking simple, plug-and-play hologram displays due to its setup complexity and size.
- LED count:276
- Control:WiFi, App
- Audio:Bluetooth audio sync
- Installation:Wall mount or tripod
- Display size:9.84 inches
- Animation library:Over 1500 animations
- Multi-unit support:Yes
- Safety features:Safety cover included
Bottom line: This hologram fan is best suited for those wanting a professional-grade, scalable holographic display for large or dynamic fan cave setups.
3D Hologram Fan, 16.5 Inch 3D Hologram Projector with Remote/APP/WIFI，Holographic Fan with HD LED 1024*800PX Resolution Picture Spinner Small for Business,Shop,Christmas,Halloween (42CM)
This smaller hologram fan offers a compelling 3D visual effect with a frameless, background-free design that makes it perfect for eye-catching displays in limited spaces. Its 1024×800 HD resolution ensures vibrant, detailed images that stand out on retail counters, small fan caves, or event booths. Compared with bulkier models like the 3D Hologram Fan Projector for Store Trade Shows, this unit is more portable and easier to install, ideal for those who want quick, flexible setups. Its app and remote controls add convenience, while the included content library helps jumpstart presentations. The main tradeoff is that its size limits the scale of displays, making it less suitable for large or multi-unit configurations without additional units. Also, although it boasts HD resolution, it lacks some advanced multi-unit splicing features of larger systems. This model makes the most sense for users wanting a compact, high-impact hologram for small to medium-size setups.
Pros:- Compact size ideal for small spaces and quick deployment
- HD resolution with vibrant, detailed projection
- Remote and app control for easy operation
Cons:- Limited scale for large or multi-fan displays
- Less advanced multi-unit splicing capability
Best for: Small business owners or home enthusiasts seeking a portable yet vivid hologram display for limited space environments.
Not ideal for: Large-scale or multi-fan installations, as its size and features are best suited to smaller displays.
- Resolution:1024×800 pixels
- Display size:16.5 inches
- Control:Remote, App
- Content library:Included, free updates
- Connectivity:WiFi
- Application:Indoor, small-scale displays
Bottom line: This hologram fan is ideal for those needing a portable, high-resolution display that fits comfortably into smaller fan cave setups.
How We Picked
The products in this roundup were evaluated based on a combination of performance, versatility, ease of setup, build quality, and value. I prioritized models that deliver clear, bright images suitable for a fan cave environment, whether for movies, gaming, or displays. Special attention was given to features like auto focus, keystone correction, and connectivity options, which influence ease of use. Products were ranked by how well they balance these factors relative to their price, with a focus on those that meet the varied needs of fan cave enthusiasts—from casual viewers to dedicated home theater builders.Factors to Consider When Choosing Best Fan Cave Projector Setup
Selecting the right projector for your fan cave involves considering several key factors that go beyond just image quality. First, brightness (lumens) is essential for visibility in different lighting conditions; higher lumens are better for outdoor or lit spaces. Second, resolution impacts clarity—4K models are ideal for the sharpest images, but may come at a higher cost. Third, connectivity options like HDMI, USB, and WiFi determine how easily you can connect your devices. Fourth, size and portability matter if you plan to move or set up in different locations. Lastly, additional features such as auto focus, keystone correction, and built-in speakers can dramatically improve usability and reduce setup time, but often add to the price.Brightness and Ambient Light
Choosing a projector with sufficient lumens is crucial for a fan cave, especially if you have ambient lighting or plan to watch during daytime. Higher lumens ensure your image remains vivid and clear, but they can also increase power consumption and cost. For dark rooms, mid-range brightness (around 1500-2500 lumens) often suffices, while outdoor or well-lit spaces demand models with 3000 lumens or more. Failing to match brightness with your environment can result in washed-out images that diminish the viewing experience.
Resolution and Image Quality
Resolution directly impacts how sharp and detailed your images appear. 4K projectors like the XGIMI Horizon Pro deliver crisp, immersive visuals that make movies and games pop, but they also come with a higher price tag. For casual use, Full HD (1080p) models can still provide excellent quality at a lower cost. Keep in mind that higher resolution models often need better sources and cables to fully realize their potential, so consider your content sources and compatibility before investing.
Connectivity and Compatibility
Look for projectors with flexible connectivity options—HDMI, USB, WiFi, and Bluetooth—to ensure seamless connection with your devices. Wireless connectivity makes setup easier and reduces cable clutter, which is especially valuable in a fan cave where aesthetics matter. If you plan to use streaming services or gaming consoles, built-in smart features or app support are a plus. Failing to verify compatibility can lead to frustration and the need for additional adapters or devices.
Ease of Setup and Portability
Auto focus, keystone correction, and zoom features significantly cut down setup time and improve image alignment, making them worthwhile investments. Portability is also worth considering if you want to switch between different locations or take your setup outdoors. Compact models are easier to store and move but may sacrifice brightness or image size. Larger, more powerful projectors tend to require more space and careful placement, which can complicate setup for casual users.
Additional Features & Longevity
Built-in speakers, smart app support, and advanced cooling systems enhance overall usability. However, these features often increase initial cost and complexity. Lamp life is another critical consideration—longer-lasting lamps reduce maintenance and replacement costs, especially for heavy use. Choosing a model with reliable longevity and easy-to-access replacement parts can save money in the long run, while overly complex features may add little value if they complicate operation.
Frequently Asked Questions
Will a higher lumen rating always mean a better fan cave projector?
Not necessarily. While higher lumens improve visibility in bright environments, they can be overkill for dark rooms where lower brightness is sufficient. Excessively bright projectors in a dark fan cave may produce overly intense images or consume more power. It’s better to match lumens to your ambient lighting and room size; for most indoor fan caves, 1500-2500 lumens strike a good balance.
Is 4K resolution necessary for a fan cave setup?
While 4K provides sharper images and a more immersive experience, it isn’t always essential depending on your viewing distance and content sources. For smaller screens or casual viewing, Full HD (1080p) projectors often suffice and come at lower prices. If you want a truly cinematic or gaming-quality experience, investing in 4K makes sense, but be aware it may also require more powerful hardware and higher content quality.
How important are auto keystone and autofocus features?
These features greatly simplify setup and ensure a clear, properly aligned image without manual adjustments. Auto keystone corrects image distortion caused by projector placement angle, while autofocus ensures sharpness across the screen. For a fan cave where quick setup and tidy appearance matter, these capabilities save time and frustration, especially if you frequently reposition your projector.
Can I use a holographic fan projector in a fan cave setup?
Holographic fan projectors like Missyou are more suited for decorative displays or eye-catching visual effects rather than traditional viewing. They excel at creating 3D illusions and dynamic visuals, but lack the ability to project standard video content clearly onto a screen. If your goal is a traditional fan cave with movies or gaming, these are better as supplementary displays rather than primary projectors.
What’s the biggest mistake to avoid when setting up a fan cave projector?
One common mistake is choosing a projector without considering the room’s lighting conditions or the size of the projected image. A projector with insufficient brightness or a mismatch between the projector’s throw distance and your space can lead to subpar visuals. It’s important to measure your space, understand your ambient light, and select a model that can produce the desired image size without sacrificing clarity or brightness.
Conclusion
For dedicated home theater enthusiasts, the XGIMI Horizon Pro offers an outstanding blend of 4K clarity, sound, and ease of use, making it the best overall choice. Budget-conscious buyers or casual viewers may prefer the AuKing Mini Projector for its affordability and portability. Those seeking eye-catching displays for events or decorations should consider holographic fan projectors like Missyou, despite their limited video capabilities. For newcomers, models with auto focus and simple setup features provide a smoother experience, while seasoned users aiming for professional-quality visuals should look into higher lumen, 4K options. Ultimately, your choice depends on how you plan to use your fan cave and what features matter most to your setup.
