Hollyland Cosmo C2 HDMI/SDI Wireless Video Transmission System

Features

• Wireless Video Transmitter/Receiver Set
• Transmitter: HDMI/SDI In, SDI Loop Out
• Receiver: 2 HDMI/SDI Outputs
• 1000m Line-of-Sight 1080p60 Transmission
• 5.1 to 5.85 GHz Frequency Bands
• Supports UVC, RTMP & NDI|HX Streaming
• FPS Booster Converts Frame Rates
• HEVO 2.0 Technology, 33 ms Latency
• DC Input, L-Series Battery Plate and V mount on RX.

The Hollyland Cosmo C2 HDMI/SDI Wireless Video Transmission System enables seamless, long-range 1080p60 video transmission up to 1000m to a single receiver, providing flexible monitoring and distribution for both studio and field productions. Operating within the 5.1 to 5.85 GHz wireless frequency range, this kit includes a transmitter and receiver for reliable, high-quality signal transmission. Enhancements to the series include HEVO 2.0 technology, support for UVC, RTMP, and NDI|HX streaming, and expanded power options for greater versatility.

Strong Signal Strength, Seamless Frequency Hopping

The Cosmo C2 can transmit 1080p60 video up to 1000m line-of-sight with a low 33 ms latency. The system operates on the 5 GHz frequency band, automatically detecting surrounding frequency interference and seamlessly switching to a clean channel via HEVO 2.0 technology. This makes for an uninterrupted transmission signal.

Connectivity

• The transmitter features one HDMI input, one SDI input, and one SDI loop output.
• The receiver features two HDMI outputs, two SDI outputs, and an RJ45 Ethernet port.
• USB-C ports on both units allow you to connect to the included USB-C OTG adapter and your personal computer for UVC streaming.

RTMP and NDI|HX Streaming

The Cosmo C2 unlocks RTMP streaming for direct live streaming to YouTube, Twitch, and other platforms. The receiver unit supports NDI|HX protocol, transmitting video streams via a single network cable for a cleaner production space.

FPS Booster, Fractional Frame Rate

Using a frame rate compensation algorithm, the Cosmo C2 receiver can convert low frame rate inputs like 1080p24/25/30 to high frame rate outputs at 1080p60, making smoother visuals. The Cosmo C2 can also transmit HDMI/SDI fractional frame rate input/output signals to ensure flexibility while filming.

Frozen Frame

If your transmission is interrupted, Cosmo C2 can freeze the last frame of your feed, effectively preventing the display of the manufacturer's logo. There is also the option to customize the logo image if you prefer to use a USB flash drive for a more professional appearance.

Versatile Power and Mounting Options

Each unit can be powered via DC input using the included power supply when working on set. In field applications or in studio spaces with limited outlets, both units offer battery plate options. The transmitter features an L-series battery plate, and the receiver features a V-mount battery plate for higher-capacity power sources. Use the 1/4"-20 threads on the units or the cold shoe adapter to secure them to the mounting configurations of your choice.

Specs:

Specs

Inputs/Outputs

Wireless

Format Support

Power

Mounting

General

What's in the box:

1 x Hollyland Cosmo C2 Receiver

1 x Hollyland Cosmo C2 Transmitter

1 x USB-C OTG Adaptor

1 x Cold Shoe Mount

1 x Power Adaptor (Australia Standard)

1 x Hard Shell Carry Case

Shipping Policy

1. Processing Time
Orders are processed within 1-2 business days after payment confirmation. Orders placed on weekends or public holidays will be processed on the next business day.

2. Shipping Methods & Delivery Times
We offer the following shipping options:

• Standard Shipping (Australia-wide): Estimated delivery time is 3-7 business days via Australia Post.

• Express Shipping (Australia-wide): Estimated delivery time is 1-3 business days via Australia Post or TNT, with Express Shipping Rate Applied

3. Shipping Rates
Shipping costs are calculated at checkout based on the weight, size, and destination of your order.

4. Tracking Information
Once your order has been dispatched, a tracking number will be provided via email. You can track your order through the carrier’s website.

RETURN POLICY

You may return the faulty item with manufacturer's defect for replacement or refund after product received. We normally will organise replacement within 7 days if we have same product in stock. We cannot accept the return of any non-faulty items under any circumstance, in particular to all memory cards, batteries, monitors, microphones or electronic items.

We are not obliged to refund nor accept returns for incorrect choice of purchase of change of mind. We may agree to exchange incorrectly ordered items if the package has never been opened or used. 15% restocking fee will apply for exchanges. No refund will be issued for freight, postage or insurance costs.

APPLICABLE LAWS

These terms and conditions are governed by, and you agree to submit to, the laws applicable in the State of New South Wales, Australia. These terms shall be interpreted and governed by the law of New South Wales, and any disputes in relation to them are subject to the jurisdiction of the courts in New South Wales.

WARRANTY Policy
Eligible items electronic in nature and with moving parts are covered by a limited 1 year warranty. Warranty does not cover including but not limited to fabrics, textiles, papers, cards, plastics.

This limited 1 year warranty is claimable via Photo Equipment Store upon presentation of a receipt/ proof of purchase matching the item and showing the purchase date. Items purchased outside of the 1 year bracket and need repair, or items without proof of date of purchase will incur a repair charge as required.

Changing a product (meaning it has been modified or altered from the original state of purchase eg. cutting, welding, electronic modifications) voids this warranty.

This limited 1 year warranty covers manufacturing defects only during normal usage or items "dead on arrival". This warranty is not to be considered "like insurance" and does not cover including but not limited to damages incurred from wear and tear, damage via transit or postage (where insurance is not paid for - this is an insurance claim that will need to be submitted to the transport carrier), accidental damage via misuse, accident, environment/ natural causes, electrical surges, incorrect usage (for example inserting something in the wrong way, overloading or overusing beyond maximum limits), gravity and force. Photo Equipment Store recommends customers to fully insure their equipment with an insurance company should they be concerned about the previously stated causes of damage.

Photo Equipment Store reserves the final decision in regards to repairs. At Photo Equipment Store's discretion a repair service will be offered and available for all claims under warranty. All claims are to be submitted writing via email, and our customer service team will respond to your claim accordingly.