The Hollyland Cosmo C1 is a compact, SDI/HDMI wireless video transmission system designed for professional monitoring, live streaming, and on-set collaboration. It transmits up to 1080p60 with stability-first HEVO technology and efficient H.265 encoding, enabling clean image quality and ultra-low latency performance that supports confident operating and focus work at distance. Rated for up to 1,000ft line-of-sight, the link is engineered to remain robust in complex RF environments with adaptive frequency hopping and seamless channel switching.

Cosmo C1 is built for modern hybrid workflows. An industry-first for this class, embedded UVC over USB‑C lets crews stream directly to a computer with a single cable, eliminating external capture devices and setup friction. This means a receiver can feed both a director’s monitor and a laptop for streaming or review without additional converters. It recognizes as a standard webcam source for most software, keeping teams nimble during live, corporate, and remote‑client sessions.

Connectivity covers cinema and broadcast needs. The transmitter includes SDI input, HDMI input, and SDI loopout for pass‑through to on‑camera recorders or additional monitors. The receiver offers dual SDI outputs plus HDMI output for flexible distribution to DIT carts, director’s monitors, switchers, or recorders. This dual‑format I/O ensures compatibility across mirrorless, digital cinema cameras, and studio equipment without extra boxes.

Reliability features are built in. Smart channel scan helps crews pick cleaner frequencies at startup or on demand to minimize dropouts. The HEVO platform is designed to perform seamless frequency hops so the picture remains intact at the moment of switching, avoiding black frames and flickers that disrupt focus or client confidence. For security‑sensitive sets, AES‑128 encryption protects the video feed from interception while operating in the 5.x GHz band.

Power and rigging are straightforward. Both TX and RX support L‑series batteries, DC input, and USB‑C power, making it easy to mount on cameras, cages, director’s monitors, and carts. An integrated cold shoe with 1/4‑inch thread speeds setup without extra brackets, and the compact, lightweight chassis stays friendly to gimbal and handheld builds. OLED status displays on both units give quick confirmation of channel, format, link health, and power at a glance.

Latency and visual clarity are tuned for real production. HEVO’s improved coding efficiency with H.265 supports more detail at a given bitrate, enhancing edge definition and textures that matter for focus pulling. Claimed latency down to about 40ms helps operators retain natural timing on moves and marks, while line‑of‑sight reach up to 1,000ft covers most stage and location needs. For app‑free monitoring and switching, the RX outputs feed SDI/HDMI devices directly; for lean streaming or remote review, USB‑C UVC simplifies the path to a computer.

On commercials, narrative, documentary, and live events, Cosmo C1 supports director monitoring, first AC focus pulls, steadicam and gimbal links, and client village visibility. Dual SDI on the receiver lets DIT and director receive the same feed without daisy‑chaining, while the transmitter’s SDI loopout keeps on‑camera recorders and operator monitors online. The result is a cleaner, more reliable workflow that scales between small teams and full departments.

As a camera rental partner, Unicorn Films delivers Cosmo C1 as a production‑ready wireless kit. Every package arrives with paired TX/RX, standard and mushroom antennas, L‑series battery options, DC and USB‑C power, SDI/HDMI cabling, cold shoe mounting, and quick‑start guidance for channel scanning and UVC streaming. Our knowledgeable crew aligns I/O to the selected camera and monitors, suggests best‑practice RF setups, and ensures the system integrates cleanly into existing carts and video village layouts. Expect hassle‑free rentals that keep the signal solid, pictures sharp, and departments in sync.

For teams prioritizing stable 1080p60 wireless, low‑latency operation, direct UVC streaming, and flexible SDI/HDMI I/O in a compact footprint, the Hollyland Cosmo C1 is a practical, reliable choice that accelerates production and reduces setup complexity.