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Description
Hollyland MARS 4K Wireless Video ReceiverAdd up to 4K30 wireless video transmission to your gimbal, mirrorless, or DSLR camera rig using the lightweight Mars 4K Wireless Video Receiver from Hollyland. The receiver provides HDMI and SDI outputs and features extremely low 66 ms latency with line of sight transmission up to 450' to an optional receiver. The unit features a built in frequency scanner to select the clearest frequency for your transmission. The Mars 4K receiver is compact in size,
Add up to 4K30 wireless video transmission to your gimbal, mirrorless, or DSLR camera rig using the lightweight Mars 4K Wireless Video Receiver from Hollyland. The receiver provides HDMI and SDI outputs and features extremely low 66 ms latency with line-of-sight transmission up to 450' to an optional receiver.
The unit features a built-in frequency scanner to select the clearest frequency for your transmission. The Mars 4K receiver is compact in size, features a bright touchscreen LCD display for configuration, and is built with a corrosion-resistant housing. The unit can be powered using a USB-C source, the included locking DC power adapter, or by using a separately available L-series type battery using an optional battery plate.
UHD 4K Video Transmission
The Mars 4K supports UHD 4K30 video transmission for the discerning videographer looking for high-resolution production capability. The Mars 4K also supports FHD and HD formats at varying frame rates such as 24, 30, and 60p.
Long Range and Low Latency
The Mars 4K features a long line-of-sight range of 450' and an ultralow latency of 66 ms. Its upgraded dual-core codec chip is capable of a 12 Mb/s data transfer rate.
HDMI and SDI Interfaces
The Mars 4K receiver supports HDMI and SDI outputs for expanded connectivity and compatibility. The SDI ports provide expanded frame rate flexibility for broadcast and production frame rate standards and compatibility through production and postproduction.
Form Factor
The Mars 4K features corrosion and wear resistance for durability. The design form factor optimizes operational functionality for fast configurations with wiggle-free, bullet-styled antennas attached.
Smart Channel Scanning
Channel assignment options allow for interference-free transmission. A stable connection is possible automatically upon startup. An intelligent channel scan helps determine which ones are occupied and selectable.
Color Touchscreen LCD
The Mars 4K features a color touch LCD with a user-friendly UI design that enables quick configuration and status checks. Its gamepad-styled button dramatically improves the operational setup experience.
Multiple Power Options
The Mars 4K supports various DC power options: 6 to 16 VDC coax input, L-series/NP-F batteries, and USB-C chargers.
App Monitoring
The Hollyview app for Android and iOS allows you to monitor your transmission on a smartphone or tablet. It allows you to transmit to apps and receivers in the following configurations:
- Transmitter to 1 receiver + 2 apps
- Transmitter to 4 apps
- Mars M1 wireless transceiver monitor to 1 receiver and 2 apps
Specifications
Inputs / Outputs
| Antenna I/O | 2 x RP-SMA Male |
| Video I/O | 1 x HDMI Output 1 x BNC Output |
| Embedded Audio | HDMI/SDI |
| Audio I/O | None |
| Power I/O | 1 x Barrel Input 1 x USB-C Input |
Wireless
| Wireless Range | 450' / 137.2 m (Line-of-Sight) |
| Channel Bandwidth | 20 MHz |
| Frequency Range | US: 5.1 to 5.8 GHz |
| Latency | 66 ms |
| RF Power | 21 dBm |
| RF Sensitivity | -90 dBm |
| Wi-Fi | Wi-Fi 4 (802.11n) |
| Bluetooth | None |
| Mobile App Compatible | Yes |
Format Support
| Video Format | HDMI UHD 4K: 30 1080p: 60/30/24 SDI 1080p: 60/59.94/30/29.97/24/23.98 |
| Timecode Support | Yes |
Power
| DC Input Power | 6 to 16 VDC |
| Power Consumption | 8.5 W |
Mounting
| Mounting | 1 x 1/4"-20 Female |
Environmental
| IP Rating | None |
| Environmental Protection | None |
| Operating Temperature | 14 to 140°F / -10 to 60°C |
| Storage Temperature | -40 to 140°F / -40 to 60°C |
General
| Dimensions | 4.5 x 2.6 x 1.3" / 115 x 65 x 32 mm |
| Weight | 7.9 oz / 223 g, Excluding Antenna |
Packaging Info
| Package Weight | 1.505 lb |
| Box Dimensions (LxWxH) | 7.9 x 5.7 x 3.1" |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 160 reviews
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Product Reviews
★★★★★ 3
Decent for the price. Instructions suck but most people should be able to figure it out. More below.
Color: Black, Size: 6 Panel, Color: Black, Size: 6 Panel
SUMMARY:
3 stars from me because it's firmly average. It's fine for the price. Assembly and materials are alright but I can see some caveats depending on your circumstances. Assembly instructions do a subpar job of pointing out some details.
ASSEMBLY INSTRUCTIONS:
Maybe it's because I'm autistic and/or building model kits and assembling stuff is my jam, but I honestly thought people were exaggerating when they were complaining about the instructions and I'd be able to flex my ~superior assembly skills.~ I was wrong! These instructions genuinely suck, and whoever is responsible for making them should be ashamed.
The instructions do a poor job of calling out some details regarding orientation of parts, and some of the images do not actually match the physical parts.
For example, it does not really outline the assembly of the end panels clearly, and I can see someone accidentally using the wrong poles. I've drawn over a photo to show what you should do to try and make it clearer. Additionally, the manual shows a flathead screw for bolting the feet into position, but the actual screw is not a flathead. It also does not point out the counterbore, so if you aren't paying attention you may put the foot pads onto the wrong side of the foot. It's also missing the fact that you need to use another one of the plastic pieces when you finish assembling a panel.
ACTUAL ASSEMBLY & MATERIALS:
To their credit, all of my bags were clearly labeled. The assembly process wasn't difficult. It's mostly just tedious and requires a fair amount of space. I was able to assemble it by myself without any real difficulty. However, the way it's assembled means two things.
One, the fabric parts aren't removable without disassembly. So if you want to use this in an environment where they would require cleaning, I would seriously recommend looking for another option. Or, you could buy this just to use the frame pieces and then somehow buy or make your own fabric pieces designed to be removable with velcro or something.
Two, because of the materials I really don't have a lot of faith in this thing surviving disassembly and reassembly. Like a lot of sorta-cheap-but-convenient furniture, it uses those spring-button connections and plastic inserts with self-tapping screws. Those things are not really meant to be disassembled and rethreaded. It also relies a lot on the tension of the poles and the fabric to keep everything rigid and squared, which I think puts a lot of pressure on the aforementioned buttons, plastic inserts, and the hollow metal rods. So I feel like that will also cause issues with disassembly and reassembly.
Basically once this thing is assembled, it's not really meant to be disassembled. The best you can do is spot-clean the fabric if you need to.
Speaking of the fabric, I didn't see any labels on them or anything in the manual that says what they are, but they feel like some kind of polyester. They generate static electricity pretty easily, and pet hair and debris sticks easily. So that's another downside of them not being easily removable.
For the most part it does seem pretty stable. The poles seem to be pretty uniform in length so they're all making contact with my floor. Obviously this isn't structural so it shouldn't be supporting anything, but the two main feet seem to be doing fine with keeping this thing upright.
CLOSING THOUGHTS:
Really, it's fine for what it is, but it could be better in a lot of little ways and the substandard quality of the instructions just seems unprofessional to me, which is why I'm being so harsh with my rating. Depending on your needs and environment you may want to consider a different option. Preferably one that is made to be disassembled with better materials, and/or one with fabric pieces made to be removed easily.
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Reviewed in the United States on May 28, 2023
★★★★★ 1
Not as it seems
Color: Black, Size: 6 Panel
these are awful... Each individual panel is fine, but when you put it together it can barely stand up, and the clips that hold it together keep popping off. Steer clear of this item.
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Reviewed in the United States on April 7, 2026
★★★★★ 5
As described
Color: White, Size: 6 Panel
Works great in my clinic
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Reviewed in the United States on May 17, 2026
★★★★★ 5
Excellent privacy shade.
Color: Coal Black
This delivered on exactly what it promises. So happy with the quality for the value. The shades are a fabric, nylon like, that are attached with a pocket on one end and velcro that adheres around the bar on the other.
This was incredibly easy and straightforward to put together. Every piece was clearly labeled, coordinated with the instruction sheet, and fit perfectly. Honestly, I wasn’t planning to leave a review but I was so impressed by how clearly labeled and well explained the instructions were that I felt compelled to note it. Especially for anyone who doesn’t like putting things together, or is used to subpar instructions, this is leagues above the rest. It’s such a simple build anyway, but after buying so many things that barely fit as they should, this stands out.
It is lightweight and easy to move. Offers privacy when opened, then can be folded out of the way. It looks exactly as pictured. No complaints, it’s a solid item and worth the price.
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Reviewed in the United States on April 9, 2026
★★★★★ 5
Decent quality for the price
Color: Grey
Decent quality for the price. Other privacy screens were extremely out of my budget, but this looks and works just fine- I just needed something simple to place behind my couch to hide some clutter. It took me about a half hour to assemble, but it was easy enough.
It might be due to my carpeting, but I don't trust that the screen would be stable enough to stand freely without falling. Thankfully my
plan all along was to wedge the screen between the couch and a box of clutter anyway, so for me it works as l'd planned!
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Reviewed in the United States on April 10, 2026