Hollyland COSMO C2 HDMI/SDI Wireless Video 2-Transmitter System (2TX + 1RX)
US$ 17428.25
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Description
Hollyland COSMO C2 HDMI/SDI Wireless Video Transmission System (1TX + 1RX)The Hollyland COSMO C2 HDMI SDI Wireless Video Transmission System (1TX + 1RX) is a professional, broadcast grade wireless monitoring kit tailored for cinematography teams, live television directors, focus pullers, and demanding production sets. Building directly on the legacy of the Cosmo C1, the C2 system integrates Hollylands updated HEVO 2. 0 processing engine. This base 1TX + 1RX package establishes a rock solid single camera pipeline while
The Hollyland COSMO C2 HDMI/SDI Wireless Video Transmission System (1TX + 1RX) is a professional, broadcast-grade wireless monitoring kit tailored for cinematography teams, live television directors, focus pullers, and demanding production sets.
Building directly on the legacy of the Cosmo C1, the C2 system integrates Hollyland’s updated HEVO 2.0 processing engine. This base 1TX + 1RX package establishes a rock-solid single-camera pipeline while offering the unique scalability to expand into a multi-camera workflow (up to 2TX to 1RX) down the road without buying an extra receiver.
Key Technical Performance Features
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Expanded 3,000-Foot Wireless Radius: Powered by the HEVO 2.0 hardware protocol, the system transmits uncompressed Full HD video across an expansive 3,000 feet (1,000 meters) line-of-sight range, easily covering large sports arenas, deep film sets, or complex multi-floor venue architecture.
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Zero-Lag 33ms Monitoring Latency: Real-time data delay is kept to a near-imperceptible 33 milliseconds. Focus pullers can pull sharp focus on fast-moving subjects and directors can evaluate actor timing perfectly without a trailing delay.
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Adaptive Frequency Hopping (AFH): Operating on the 5.1 GHz to 5.85 GHz spectrum, the COSMO C2 actively scans for radio frequency (RF) clutter. If it detects heavy local Wi-Fi traffic or venue interference, it seamlessly transitions to the cleanest available channel without dropping frames or freezing the video feed.
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Dual-Interface (HDMI + 3G-SDI) Versatility:
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Transmitter (TX): Equipped with 1× HDMI input, 1× 3G-SDI input, and a dedicated physical 3G-SDI Loopout port so local camera operators can plug an on-camera monitor straight into the transmission block.
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Receiver (RX): Delivers dual signal distribution via 2× HDMI outputs and 2× 3G-SDI outputs to feed high-end production switchers, directors' cages, and client multi-view monitors simultaneously.
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UAC Web Camera Mode: The receiver includes a plug-and-play USB-C output supporting USB Audio Class (UAC) and USB Video Class (UVC). This lets you feed the wireless video line directly into a computer as a webcam source for instant live streaming via OBS Studio, Zoom, or vMix without requiring an external capture card.
Hardware Technical Specifications Matrix
| Feature Component | COSMO C2 (1TX + 1RX) System Specifications |
| System Baseline Layout | 1 × Wireless Video Transmitter (TX) | 1 × Wireless Video Receiver (RX) |
| Wireless Core Transmission | HEVO 2.0 Technology (5.15 GHz to 5.85 GHz Frequency Range) |
| Video Resolution Depth | Up to 1080p Full HD at 60 frames per second |
| Signal Processing Latency | Ultra-low 33 milliseconds |
| Max Line-of-Sight Range | Up to 3,000 feet (1,000 meters) |
| Transmitter I/O Trays | 1× HDMI 1.4b In | 1× 3G-SDI In | 1× 3G-SDI Loopout |
| Receiver I/O Trays | 2× HDMI 1.4b Out | 2× 3G-SDI Out | 1× USB-C (UVC/UAC Output) |
| Device Power Interface | Integrated Sony NP-F Battery Plates | 2.0mm Locking DC Barrel Inputs |
| Chassis Mechanical Build | CNC-Machined Aerospace-Grade Aluminum Alloy |
What's In The Box?
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1 × COSMO C2 Wireless Video Transmitter (TX)
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1 × COSMO C2 Wireless Video Receiver (RX)
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4 × High-Gain Omnidirectional Whip Antennas
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2 × Mushroom Antennas (optimized for short-range, heavy-interference sets)
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1 × 12V / 2A DC Power Supply Adapter (for stationary monitoring desks)
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1 × Articulating Magic Arm Mount
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1 × Cold Shoe Mount Adapter
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1 × Heavy-Duty Rugged Carrying Case with Laser-Cut Custom Protective Foam
Intelligent Power Redundancy: Both units support a flexible 6V to 16V DC input voltage envelope alongside their native Sony L-Series (NP-F) battery plates. When rigged onto pro-tier camera packages, you can run a standard D-Tap to locking barrel cable straight from your master V-Mount or Gold-Mount system block. This safeguards the wireless feed with constant power and keeps the overall camera rig lightweight.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 2395 reviews
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Product Reviews
★★★★★ 5
It's not glamorous but it works wonders - even while I am on Accutane!
Size: 19 Ounce (Pack of 1)
This is the best, most luxurious lotion I have ever used. And the only lotion that I can even stand to be on my skin.
I started Accutane (for acne) last year and was told that my skin would dry out horribly and that I needed to find a good moisturizer to limit the peeling and cracking that I would inevitably experience. Prior to the medicine my skin was oily and very acne prone and every lotion that I had tried either made me feel like I was wearing a latex suit or broke me out horribly. After doing some research I read that this was a great solution and figured I would give it a try. I started it out right away to try to avoid getting dry and was shocked at how well it worked. Even at the beginning when I was still oily this lotion never felt too heavy. Now don't get me wrong-it goes on like frosting and initially feels like a lot-but within minutes it soaks in and leaves your skin feeling like a little kids (not the sticky kind of little kid though-the good clean little kids with undamaged skin). It will last for days too. No need to reapply because it has soaked in to your skin and doesn't just sit on the surface. My skin has never been this soft. And here I am, nearly 9 months in to my Accutane medication regimen and I am not flaking or peeling. In fact, my skin has never looked better or more healthy. My doctors are shocked at how my skin has stayed moisturized because nearly everyone peels. And it doesn't break you out which is obviously something super important. Now, could I be an anomoly? Maybe, but I don't think so. I honestly think this lotion is Just. That. Good! The price isn't bad either!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 5, 2026
★★★★★ 4
At this rate, I'm leaving this to my kids in my will
Size: 19 Ounce (Pack of 1)
Ten months in and I have barely made a dent in this tub. I am genuinely starting to consider my options — mixing it into smoothies, using it as a cooking fat, applying it to every surface in the house. Something has to be done because at the current rate of consumption this container will outlive me.
In all seriousness, the value proposition here is almost absurd. CeraVe Moisturizing Cream is a legitimately great product — dermatologist recommended, ceramides, hyaluronic acid, fragrance free, non-comedogenic, works on face and body, gentle enough for sensitive skin. It does everything a moisturizer should do without irritating your skin or smelling like you bathed in a candle.
The 19oz tub is the right call if you actually plan to use moisturizer regularly. A little goes a long way, which is both the best and most frustrating thing about it. Best because you're getting incredible value per ounce. Frustrating because you will be looking at this same tub for the foreseeable future with no end in sight.
Great product, generational quantity. Buy it once, pass it down.
One star deducted because I now have to figure out what to do with the remaining 18.5 ounces.
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Reviewed in the United States on May 18, 2026
★★★★★ 5
Switched from luxury brands and never looked back!
Size: 19 Ounce (Pack of 1)
I used to spend way too much on high end body moisturizers thinking the price meant better results. Tried CeraVe on a whim and realized I was paying for packaging and fragrance this whole time. This does more for my skin than anything I used before.
I use it daily all over my body after showering and my skin stays soft the entire day. No irritation ever. The formula is so gentle that I forget I'm even wearing anything. No fragrance, no stinging, no breakouts. Just clean hydration. If you have sensitive skin and you're nervous about trying something new, this is about as safe as it gets.
The 19 oz tub lasts a long time even with daily full body use. Ceramides and hyaluronic acid at this price point is honestly ridiculous value. Save your money on the luxury stuff and just get this.
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Reviewed in the United States on April 9, 2026
★★★★★ 5
So Far, Really Good for Dry and Sensitive Skin
Size: 8 Ounce, Size: 8 Ounce
I’ve only been using this moisturizer for about 2 weeks, but so far I really like it. It keeps my skin feeling hydrated throughout the day without feeling greasy or heavy. The texture is smooth, absorbs nicely, and doesn’t irritate my skin at all.
I also noticed my skin feels softer and less dry since I started using it. It’s simple, gentle, and works well for everyday use, especially if you have sensitive skin. So far I haven’t experienced any breakouts or strong fragrance issues, which I appreciate.
Too early to say long-term results, but my first impression has been very positive and I would buy it again.
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Reviewed in the United States on May 10, 2026
★★★★★ 5
PERFECT!
Size: 19 Ounce (Pack of 1)
My favorite daily face cream, thick but absorbs fast, fights wrinkles, non-oily, discreet fresh scent, and lasts forever!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 6, 2026
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