Hollyland Cosmo C2 (1TX + 1RX) – Compact, Low-Latency Wireless Video System

Simplify high-quality live video capture with this streamlined 1080p60 wireless kit. Featuring one transmitter and one receiver, the Cosmo C2 delivers ultra-low latency, long range, and modern streaming flexibility—all in a user-friendly, rack-worthy package.

Key Features

• Efficient 1TX→1RX setup: Ideal for single-camera workflows or minimal kit setups without excess gear.
• Long-range & ultra-low latency: Delivers stable wireless video up to 1 000 m line-of-sight with just 33 ms delay.
• HEVO 2.0 frequency hopping: Automatically maintains a clean, interference-free signal in crowded RF environments.
• Versatile I/O: HDMI and 3G-SDI inputs on the transmitter with loop-out; dual HDMI/SDI outputs plus Ethernet on the receiver.
• Multi-protocol streaming: Supports NDI|HX, UVC, and RTMP for direct live streaming or networked workflows.
• Frame rate compensation: Receiver smooths low-frame-rate sources (24p/25p/30p) to fluid 60p output.
• Flexible power options: Works with DC, NP-F, or V-Mount batteries for fast transitions between studio and field setups.

Customer Benefits

This compact Cosmo takes the guesswork out of wireless video. With rock-solid range and intuitive setup, you maintain high fidelity 1080p feeds even on dynamic shoots. It’s perfect for minimalist camera rigs, streaming, or multi-room monitor distribution with a single, elegant system.

Quick Specs

• Transmission range: ≈ 1 000 m (3 000 ft) LOS
• Latency: ≈ 33 ms
• Video formats: 1080p/60, 1080i, 720p (HDMI/SDI)
• Transmit ports: HDMI In, 3G-SDI In, SDI Loop-Out, USB-C (OTG), SMA anten­nas
• Receive ports: 2× HDMI Out, 2× 3G-SDI Out, USB-C, RJ45 Ethernet, SMA anten­nas
• Streaming support: NDI|HX, UVC, RTMP
• Power draw: ~10 W (TX), ~11 W (RX)
• Weights: TX ~210 g; RX ~440 g
• Dimensions: TX ≈ 11.5 × 6.9 × 3.6 cm; RX ≈ 14.2 × 8.7 × 3.3 cm
• Operating frequency: 5.15–5.85 GHz

What’s in the Box

• 1 × Transmitter
• 1 × Receiver
• 5 × Blade Antennas
• USB-C OTG Adapter
• Cold-Shoe Mount
• DC Power Adapter
• Hard Carrying Case
• Quick-Start Guide & Warranty Documentation

Use Cases / Ideal For

Perfect for run-and-gun productions, live streaming from single-camera setups, event capture, or feed distribution in broadcast trucks—powerful video links in simplified form.

Compatibility

Works with any SDI or HDMI camera. Connect via HDMI/SDI, stream via UVC or NDI, or insert into existing video networks—Cosmo C2 adapts to hybrid workflows effortlessly.

Pros & Cons

✅ Pros:

• Minimalist 1TX+1RX simplifies setup and reduces clutter
• Low-latency, long-range wireless ideal for mobile & remote work
• Broad streaming support and format flexibility

⚠️ Cons:

• Lacks multi-camera input—requires upgrading for stereo rigs
• 5 GHz band may face regional restrictions—check local radio rules

Hollyland Cosmo C2 (1TX + 1RX) delivers smooth, versatile, and professional wireless video—ideal for creators who need reliable performance in a compact and smart package.