Hollyland Cosmo C2 Wireless Video Transmission System 2TX & 1RX Hollyland

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Hollyland Cosmo C2 2TX & 1RX is a professional wireless video system for two cameras and one shared receiver. HEVO 2.0 provides seamless frequency hopping, up to 1,000 m line-of-sight range and latency from 33 ms, while HDMI, 3G-SDI, NDI HX3, UVC and RTMP support both film production and live streaming.

Two cameras, one synchronized receiver

The 2TX & 1RX architecture reduces devices and cabling, while the receiver provides independent HDMI and 3G-SDI outputs for both video channels.

• up to 1,000 m line-of-sight range
• latency from 33 ms over long distances

HEVO 2.0 without disruptive dropouts

The system continuously evaluates surrounding interference and switches seamlessly to a cleaner channel, maintaining a stable feed in demanding RF environments.

Direct access to streaming workflows

The receiver supports UVC connection to a computer without a separate capture card, RTMP streaming and NDI HX3 network video over RJ45.

Location-ready power options

Transmitters accept locking DC power or NP-F batteries, while the receiver supports DC or V-Mount. Each transmitter offers HDMI, 3G-SDI input and 3G-SDI loop output.

• wireless video transmitter ×2
• wireless video receiver ×1
• blade antenna ×7
• USB-C OTG adapter ×1
• 12 V / 2 A DC power adapter ×1
• cold shoe ×2
• expansion accessory ×2
• Cosmo C2 Carry Case 01 ×1
• warranty card ×1
• compliance information card ×1
• user manual ×1
• packing list card ×1

• Configuration: 2 transmitters / 1 receiver
• Range: up to 1,000 m LOS
• Latency: from 33 ms
• Operating frequency: 5.15–5.85 GHz
• Transmitter inputs: HDMI 1.4b, 3G-SDI
• Transmitter outputs: 3G-SDI loopout
• Receiver outputs: 2× HDMI 1.4b, 2× 3G-SDI
• Network and streaming: RJ45 100 Mbps, NDI HX3, UVC, RTMP
• Transmitter power: NP-F 6.8–8.4 V or DC 6–16 V
• Receiver power: V-Mount 11.8–16.8 V or DC 6–16 V
• Transmitter weight: 210 g
• Receiver weight: 440 g
• Transmitter dimensions: 114.8 × 69 × 35.5 mm
• Receiver dimensions: 142 × 87.2 × 33.2 mm