SKU: 34452128757

Hollyland COSMOC2TX&1RX HDMI/SDI Wireless Video 2-Transmitter System

Sale price$818.55 Regular price$909.50
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Description

Hollyland COSMOC2TX&1RX HDMI/SDI Wireless Video 2-Transmitter SystemThe Cosmo C2 HDMI SDI Wireless Video 2 Transmitter System from Hollyland allows you to wirelessly transmit high resolution video up to 1080p60 over long distances up to 3000' using two transmitters to a single receiver, allowing flexible video monitoring and distribution for your studio or field production. This kit comprises two transmitters and a receiver that communicate over the 5. 1 to 5. 85 GHz wireless frequency range. Additional improvements

The Cosmo C2 HDMI/SDI Wireless Video 2-Transmitter System from Hollyland allows you to wirelessly transmit high-resolution video up to 1080p60 over long distances up to 3000' using two transmitters to a single receiver, allowing flexible video monitoring and distribution for your studio or field production. This kit comprises two transmitters and a receiver that communicate over the 5.1 to 5.85 GHz wireless frequency range. Additional improvements to the series include HEVO 2.0 technology, UVC/RTMP/NDI|HX streaming support, and expanded power options.

Strong Signal Strength, Seamless Frequency Hopping

The Cosmo C2 can transmit 1080p60 video up to 3000' line-of-sight with a low 33 ms latency. The system operates on the 5 GHz frequency band, automatically detecting surrounding frequency interference and seamlessly switching to a clean channel via HEVO 2.0 technology. This makes for an uninterrupted transmission signal.

Connectivity

The transmitters feature one HDMI input, one SDI input, and one SDI loop output.

The receiver features two HDMI outputs, two SDI outputs, and an RJ45 Ethernet port.

USB-C ports on all the units allow you to connect to the included USB-C OTG adapter and your personal computer for UVC streaming.
RTMP and NDI|HX Streaming

The Cosmo C2 unlocks RTMP streaming for direct live streaming to YouTube, Twitch, and other platforms. The receiver unit supports NDI|HX protocol, transmitting video streams via a single network cable for a cleaner production space.

FPS Booster, Fractional Frame Rate

Using a frame rate compensation algorithm, the Cosmo C2 receiver can convert low frame rate inputs like 1080p24/25/30 to high frame rate outputs at 1080p60, making smoother visuals. The Cosmo C2 can also transmit HDMI/SDI fractional frame rate input/output signals to ensure flexibility while filming

Frozen Frame

If your transmission is interrupted, Cosmo C2 can freeze the last frame of your feed, effectively preventing the display of the manufacturer's logo. There is also the option to customize the logo image if you prefer to use a USB flash drive for a more professional appearance.

Versatile Power and Mounting Options

Each unit can be powered via DC input using the included power supply when working on set. In field applications or in studio spaces with limited outlets, both units offer battery plate options. The transmitters feature an L-series battery plate, and the receiver features a V-mount battery plate for higher-capacity power sources. Use the 1/4"-20 threads on the units or the cold shoe adapter to secure them to the mounting configurations of your choice.

Features

  • Wireless Video Transmitter/Receiver Set
  • Transmitters: HDMI/SDI In, SDI Loop Out
  • Receiver: 2 HDMI/SDI Outputs
  • 3000' Line-of-Sight 1080p60 Transmission
  • 5.1 to 5.85 GHz Frequency Bands
  • Supports UVC, RTMP & NDI|HX Streaming
  • FPS Booster Converts Frame Rates
  • HEVO 2.0 Technology, 33 ms Latency
  • DC Input, L-Series/V-Mount Battery Plate

Specifications

Inputs/Outputs
Antenna I/O
Transmitter/Receiver: 2x RP-SMA
Video I/O
Transmitter: 1x HDMI 1.4b Input
Transmitter: 1x BNC (3G-SDI) Input
Transmitter: 1x BNC (3G-SDI) Loop Output
Receiver: 2x HDMI 1.4b Output
Receiver: 2x BNC (3G-SDI) Output
Embedded Audio
HDMI/SDI
Audio I/O
No
Power I/O
Transmitter/Receiver: 1x Barrel Input
Other I/O
Transmitter/Receiver: 1x USB-C
Receiver: 1x RJ45 (10/100 Ethernet)
Encryption
No,
Wireless
Wireless Range
3000' / 914.4 m
Channel Bandwidth
40 MHz
Frequency Range
5.1 to 5.85 GHz
Latency
33 ms
RF Power
< 23 dBm
RF Sensitivity
-90 dBm
Wi-Fi
Yes
Bluetooth
No
Mobile App Compatible
No
Cellular Support
No
Format Support
Video Format
HDMI/SDI
1080p: 60/59.94/50/30/29.97/25/24/23.98
1080i: 60/59.94/50
720p: 60/59.94/50
Audio Format
Not Specified by Manufacturer
Timecode Support
No
Power
Input Power
6 to 16 VDC
Battery
Receiver: 1x V-Mount on Fixed Plate
Transmitter: 1x L-Series Mount on Fixed Plate
Power Consumption
Transmitter: 10 W
Receiver: 11 W
Mounting
Tripod/Accessory Mounting
Receiver/Transmitter, Bottom
1x 1/4"-20 Female
General
Status Display
On Receiver Only
Environmental Resistance
No
Dimensions
Transmitter: 4.5 x 2.7 x 1.4" / 114.8 x 69 x 35.5 mm
Receiver: 5.6 x 3.4 x 1.3" / 142 x 87.2 x 33.2 mm
Weight
Transmitter: 7.4 oz / 210.00 g
Receiver: 15.5 oz / 440.00 g
Packaging Info
Package Weight
7.02 lb
Box Dimensions (LxWxH)
16.6 x 14.5 x 7"
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 34452128757

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4.5 ★★★★★
Based on 11 reviews
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Product Reviews
K
Verified Purchase
KJ
Natrona Heights, US
★★★★★ 5
The best chew, play and teeth cleaning toy
Size: Blue
I have a 24 lb medium australian labradoodle multigen. She loves to chew and nothing soothed her teething like this toy. It also cleans the adult teeth that came in. So win win. The squeakers didn't last but that was my fault for squeaking it to tire her out in play. We personally love this toy and will purchase it again when it wears out. So thanks for a great product. 😉
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Reviewed in the United States on March 23, 2025
R
Verified Purchase
Rachel
Boise, US
★★★★★ 4
Not indestructible, but pretty close!
Size: Yellow, Size: Yellow
I adopted a pit mix a little over a month ago, and so far he's managed to destroy every single toy he's had, including ones meant for aggressive chewers. He's a sucker for a good squeaky toy, and this had good reviews (and was affordable) so I decided to check it out. He's had his corn for a week now, and surprisingly, it's still holding up pretty well - though there are some caveats to that. My boy didn't even want to wait for me to take his corn out of the plastic bag, he too excited to get it. He went to town immediately, to the point where he was sitting in a puddle of his own drool after about an hour. He managed to squeak it (which I couldn't do myself), but still hasn't really gotten the hang of doing so - and the squeaker, when wet, does sound a little... Well, wet. He managed to have bite marks in it within the first six hours. Within a day, there were tiny bits of yellow rubber starting to appear anywhere that he played with this toy. A week later and there are some decent sized chunks missing from the corn - some of which I've had to cut off when they got loose and I worried about him choking on them. He loves his corn cob, and will likely get at least a few more weeks of play out of it before I have to toss it for his safety. I'm unsure of whether the squeaker is still functional, but he seems to love it whether or not it squeaks. Overall, it's not a bad toy for most aggressive chewers, but it will not last forever. The rubber is as heavy as the regular red Kong toys, but it feels slightly softer, which might contribute to his ability to break off little pieces. Make sure you keep an eye on your dog with this toy, or with any other, especially if they are chew goblins. But I'd definitely buy this toy again.
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Reviewed in the United States on October 6, 2024
Z
Verified Purchase
Zoltare
Grantham, US
★★★★★ 5
Solid piece
Size: Yellow
Border Collie loves it. Great for aggressive chewers. Prefers this to the carrot or the pineapple one. Probably better for large dogs than my medium size dog as there is some heft to it.
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Reviewed in the United States on December 25, 2025
G
Verified Purchase
Green earth!
Chelsea, US
★★★★★ 1
Too soft
Size: Blue
Not good for heavy chewing dogs. Gone in 10 minutes!
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Reviewed in the United States on May 25, 2026
C
Verified Purchase
Corin E.
West Palm Beach, US
★★★★★ 3
Probably indestructible since your dog won't want to play with it.
Size: Yellow
Boring yellow and rubber chew toy with a weird smell. My dog was not impressed.
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Reviewed in the United States on February 25, 2026

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