transmitter and receiver
hollyland wireless video
wireless video transmitter
wireless hdmi transmitter and receiver


$899.00 USD
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  • HDMI & SDI connections on both the transmitter and receiver, plus an SDI loopout on the transmitter
  • Transmit up to 1000ft LOS range with ultra-low latency down to 40ms
  • Embedded UVC for direct 2160x1080/60p HD video feed to computer via USB-C
  • Superior anti-interference in the 5.1GHz-5.8GHz frequency
  • HDMI & SDI input plus SDI loopout on transmitter, and two SDI outputs and one HDMI output on receiver
  • Easy-to-read OLED display showing status and configuration
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Industry-first to integrate UVC interface, Cosmo C1 offers a simplified solution to stream and share your video works

Take a closer look

Transformed by Hollylands’ HEVO wireless transmission technology, Cosmo C1 offers a new standard for real-time video monitoring. Extend your range up to 1000' (350m) of line-of-sight with an ultra-low 0.04s latency, guaranteeing a stable and smart transmission in complex environments. Industry-first to integrate UVC (USB Video Class) interface, Cosmo C1 offers a more simplified access to live streaming. It is an ideal kit for pro filmmaking, micro-to-medium events, commercial shooting, etc.

High-Definition Video Transmission

The Cosmo C1 SDI/HDMI Wireless Video Transmission System allows you to transmit high-resolution video up to 1080p60 over long distances. Now you'll have flexible video monitoring and distribution for your production. This kit consists of a transmitter and a receiver.

Solid, Secure Wireless Transmission

The Cosmo C1 can transmit video up to 1000' line-of-sight with a low 40 ms latency using the HEVC/H.265 codec. It operates on the 5 GHz frequency band and uses AES-128 encryption to prevent video leakage. 

Versatile Power and Form Factor

  • A bright, easy-to-read OLED display on both TX and RX units showing status and configuration
  • Each unit can be powered via an L-series battery plate or with an optional USB power supply via the USB Type-C port
  • Four standard antennas and two mushroom antennas are supplied for the receiver and transmitter
  • Each unit is easy to mount just about anywhere using its 1/4"-20 threads and included shoe-mount adapter

HDMI & SDI Video Input/Output

The transmitter offers one HDMI input, one SDI input, and one SDI loop-through output, and the receiver offers two SDI outputs and one HDMI output.

Embeded UVC Livestreaming

With HEVO, UVC is embedded in COSMO C1. It simply takes one USB-C to pass 1080P60 HD video to your computer for direct live streaming. No video capture device needed no additional settings. It just works!