Hollyland Cosmo C2 HDMI/SDI Wireless Video 2-Transmitter System

Long-Range Wireless Video Transmission with Dual Transmitters
The Hollyland Cosmo C2 Wireless Video Transmission System is built for professional filmmakers and production teams who require a reliable and high-quality video feed. With dual transmitters and a single receiver, this system enables seamless video transmission up to 3000 feet line-of-sight with ultra-low 33ms latency. Designed for multi-camera setups, this kit allows two transmitters to communicate with one receiver, providing expanded flexibility for live productions, studio shoots, and fieldwork.

Seamless Frequency Hopping with HEVO 2.0 Technology
Operating in the 5.1 to 5.85 GHz frequency range, the Cosmo C2 uses HEVO 2.0 technology to continuously scan for interference and switch to the clearest channel in real time. This ensures a smooth, uninterrupted video feed, even in congested RF environments. Whether you're working in a live event setting or a high-traffic production area, the Cosmo C2 automatically adapts to maintain a stable signal.

Multiple Input and Output Options for Versatile Connectivity
The Cosmo C2 system is equipped with HDMI and SDI connections to accommodate various video workflows. Each transmitter includes an HDMI input, an SDI input, and an SDI loop output, making it easy to integrate with professional camera systems. The receiver is designed with two HDMI outputs, two SDI outputs, and an RJ45 Ethernet port for flexible connectivity with video switchers, monitors, and streaming platforms.

UVC, RTMP, and NDI HX Streaming Support
The Cosmo C2 streamlines live broadcasting with built-in UVC, RTMP, and NDI|HX support. Using a single USB-C connection, users can send 1080p60 video directly to a computer without requiring external capture devices. RTMP compatibility allows direct streaming to YouTube, Twitch, and other platforms, while NDI|HX support enables smooth video transmission over a network, reducing the need for additional cabling.

Frozen Frame Protection for Uninterrupted Broadcasts
If the transmission signal is lost, the Cosmo C2’s frozen frame function prevents a blank screen by displaying the last transmitted frame. This ensures that live audiences do not experience sudden blackouts. Users can also customize this feature by loading a preferred image or logo onto a USB flash drive, maintaining a professional appearance during production.

Advanced Power and Mounting Options for Any Setup
The Cosmo C2 provides flexible power solutions, allowing users to choose between DC input or battery power. The transmitters feature L-series battery plates, while the receiver is equipped with a V-mount battery plate for extended operation in field environments. Each unit includes 1/4"-20 mounting threads and a cold shoe adapter for easy installation on rigs, tripods, or camera setups.