The Hollyland Cosmo C2 2TX & 1RX wireless video transmission system is engineered to meet the rigorous demands of professional multi-camera productions. Its dual-transmitter, single-receiver configuration streamlines setups by minimizing equipment and cabling, ensuring synchronized video feeds. Operating within the 5.1 to 5.85 GHz frequency spectrum, the Cosmo C2 delivers high-definition video up to 1080p60 over an impressive line-of-sight distance of 1000m, maintaining ultra-low latency of just 33 milliseconds. The system offers versatile connectivity with HDMI and SDI inputs on transmitters, and dual HDMI/SDI outputs on the receiver. Incorporating advanced HEVO 2.0 technology, it automatically detects and mitigates frequency interference through seamless channel switching, ensuring stable and uninterrupted transmission. Additionally, the Cosmo C2 supports UVC, RTMP, and NDI|HX3 streaming protocols, facilitating direct live streaming and seamless integration into diverse production workflows. Power options are flexible, including DC inputs and compatibility with L-series batteries for transmitters and V-mount batteries for the receiver, accommodating various shooting environments. With its compact design and robust feature set, the Cosmo C2 is an ideal solution for filmmakers and broadcasters seeking reliable, high-quality wireless video capabilities.
The Hollyland Cosmo C2 2TX & 1RX wireless video transmission system is engineered to meet the rigorous demands of professional multi-camera productions. Its dual-transmitter, single-receiver configuration streamlines setups by minimizing equipment and cabling, ensuring synchronized video feeds. Operating within the 5.1 to 5.85 GHz frequency spectrum, the Cosmo C2 delivers high-definition video up to 1080p60 over an impressive line-of-sight distance of 1000m, maintaining ultra-low latency of just 33 milliseconds. The system offers versatile connectivity with HDMI and SDI inputs on transmitters, and dual HDMI/SDI outputs on the receiver. Incorporating advanced HEVO 2.0 technology, it automatically detects and mitigates frequency interference through seamless channel switching, ensuring stable and uninterrupted transmission. Additionally, the Cosmo C2 supports UVC, RTMP, and NDI|HX3 streaming protocols, facilitating direct live streaming and seamless integration into diverse production workflows. Power options are flexible, including DC inputs and compatibility with L-series batteries for transmitters and V-mount batteries for the receiver, accommodating various shooting environments. With its compact design and robust feature set, the Cosmo C2 is an ideal solution for filmmakers and broadcasters seeking reliable, high-quality wireless video capabilities.
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Designed by experts with profound knowledge and market insight, Cosmo C2 features a powerful 2TX & 1RX design for enhanced wireless competence and boasts an ultra-long LOS range of 3,000ft (1,000m) and a super-low latency of just 33ms. Adopting the newly self-developed HEVO 2.0 technology, it supports seamless frequency hopping, thus ensuring a smooth and immersive experience. Combined with other powerful features and functions like NDI, UVC and RTMP streaming, this innovative kit will prove to be a great help for multi-camera livestreaming, broadcast, and more.
Cosmo C2 enables transmission between two transmitters and one receiver. This setup reduces the number of devices and cables needed, lessens wireless interference, and guarantees better synchronization of video feeds, all of which add to a more productive workflow.
More Range
Cosmo C2 boasts an ultra-long line-of-sight (LOS) transmission range of up to 1,000m (3,000ft), making it ideal for professional use in large venues, open areas, and complex buildings.
Less Latency
Cosmo C2 achieves a super-low latency of just 33ms[1] and the latency remains the same over extended distances, thus ensuring smooth and reliable transmission.
HEVO 2.0
Following a comprehensive upgrade, HEVO 2.0 technology redefines the experience.
With extended transmission range, lower latency, and support for dual transmitters and one receiver, Cosmo C2 aims to elevate your workflow.
Seamless Frequency Hopping
Powered by self-developed HEVO 2.0 technology, Cosmo C2 automatically detects surrounding frequency interference and seamlessly switches to a clean channel, which ensures uninterrupted transmission and an immersive experience.
Live Streaming
Cosmo C2 supports UVC streaming[2] as well. With a USB-C to USB-C or USB-C to USB-A cable[3], you can directly connect the receiver to any computer without the need for capture cards, simplifying the real-time transmission of on-site video.
Cosmo C2 enables RTMP streaming, a streaming method widely used for its low latency and compatibility with a wide range of live streaming platforms, such as YouTube and Twitch.
NDI Protocol Support
The receiver of Cosmo C2 supports Network Device Interface (NDI) protocol, allowing video streams to be transmitted over a single network cable. This eliminates the complexity and clutter of connections and creates a cleaner production space.
FPS Booster[4]
Through brand-new frame rate compensation algorithm, the RX can convert low frame rate inputs such as 24/25/30P to a high frame rate output at 60P, making the visuals smoother.
Fractional Frame Rate
Cosmo C2 can transmit HDMI/SDI fractional frame rate input and output, catering to your flexible needs while shooting.
Versatile Power Options
Receiver
The Cosmo C2 transmitter supports DC (locking) and NP-F batteries while the receiver supports DC (locking) and V-Mount batteries, ensuring your production keeps going at all times.
Transmitter
The Cosmo C2 transmitter supports DC (locking) and NP-F batteries while the receiver supports DC (locking) and V-Mount batteries, ensuring your production keeps going at all times.
Frozen Frame
When transmission is interrupted, Cosmo C2 freezes the last frame of the video feed, preventing the display of the manufacturer’s logo. You can also customize the logo image as you please with a USB flash drive.
Choose Your Cosmo C2
Whether it is live production or professional filming, you can find a set of equipment that meets your needs.
2TX & 1RX:
Wireless Video Transmitter x 2
Wireless Video Receiver x 1
Blade Antenna x 7
USB-C OTG Adapter x 1
12V/2A DC Power Adapter x 1
Cold Shoe x 2
Expansion Accessory x 2
Cosmo C2 Carry Case 01 (2TX+1RX) x 1
Warranty Card x 1
Compliance Information Card x 1
User Manual x 1
Packing List Card x 1
Specs
Transmitter
Port:
DC Input: 2.0mm Core Socket
HDMI Input: HDMI 1.4b
SDI Input: 3G SDI
SDI Loopout: 3G SDI
USB-C: USB 2.0 OTG
Antenna: SMA Male
Power Supply: NP-F Battery Voltage Range: 6.8 – 8.4V , DC Voltage Range: 6 – 16V
Power Consumption: < 10W
Net Weight: 210g
Dimensions (L × W × H): 114.8 × 69 × 35.5mm (4.5 × 2.7 × 1.4″)
Operating Frequency: 5.15 – 5.85 GHz
Transmit Power: < 23 dBm
Latency: ≥ 33ms
Bandwidth: 40 MHz
Input/Output Format:
HDMI/SDI Input
SDI Loopout
720p/59.94/60
1080i50/59.94/60
1080p23.98/25/29.97/30
1080p50/59.94/60
Receiver
Port:
DC Input: 2.0mm Core Socket
HDMI Output: HDMI 1.4b × 2
SDI Output: 3G SDI × 2
USB-C: USB 2.0 OTG
Antenna: SMA Male
Ethernet Port: RJ45,100 Mbps
Power Supply: V-Mount Battery Voltage Range: 11.8 – 16.8V , DC Voltage Range: 6 – 16V
Power Consumption: < 11W
Net Weight: 440g
Dimensions (L × W × H): 142 × 87.2 × 33.2mm (5.6 × 3.4 × 1.3″)
Operating Frequency: 5.15 – 5.85 GHz
Receiver Sensitivity: −90 dBm
Latency: ≥ 33ms
Bandwidth: 40 MHz
Input/Output Format:
HDMI/SDI Output
720p50/59.94/60
1080i50/59.94/60
1080p23.98/24/25/29.97/30
1080p50/59.94/60
Note:
1. The data is based on Hollyland laboratory results.
2. Mac only supports receiving one of the UVC videos.
3. The cable needs to be a data cable.
4. FPS Booster is disabled by default. When enabled, the RX end screen will display "FPS Booster."
Data sheet
Specific References
