Wireless HD video transmission for professional workflows

The Hollyland Cosmo C2 1TX&1RX is a wireless HDMI/SDI video transmission system designed for reliable monitoring and distribution in studio and on-location productions. It sends high-resolution video up to 1080p60 to a single receiver over distances of up to 900 meters, giving you the freedom to place your setup where it works best.

Operating in the 5.1 to 5.85 GHz range, this transmitter and receiver set is built for stable performance and low delay. With HEVO 2.0 technology, the system automatically detects interference and switches to a cleaner channel to help maintain a smooth, uninterrupted signal. It also offers support for UVC, RTMP, and NDI|HX streaming, making it a flexible choice for modern video productions.

Key features

• Wireless transmitter and receiver set
• Transmitter with HDMI/SDI input and SDI loop output
• Receiver with 2 HDMI/SDI outputs
• Supports 1080p60 transmission up to 900 meters line of sight
• 5.1 to 5.85 GHz frequency range
• Compatible with UVC, RTMP, and NDI|HX streaming
• FPS booster for frame rate conversion
• HEVO 2.0 technology with 33 ms latency
• DC input and L-series battery plate support
• Compact, lightweight design for easy integration

Specifications

• Transmitter dimensions: 114.8 x 69 x 35.5 mm
• Receiver dimensions: 142 x 87.2 x 33.2 mm
• Transmitter weight: 210 g
• Receiver weight: 440 g

What's in the box

• 1x Hollyland Cosmo C2 TX transmitter
• 1x Hollyland Cosmo C2 RX receiver
• 5x antennas
• 1x USB-C OTG adapter
• 1x cold shoe mount
• 1x power adapter (12 VDC, 2 A)