Hollyland COSMO C2 HDMI/SDI Wireless Video 2-Transmitter System (2TX + 1RX)
US$ 17428.25
Sold : Login>>
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 10 - Jul 15
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
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
-
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.
-
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.
-
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.
-
Dual-Interface (HDMI + 3G-SDI) Versatility:
-
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.
-
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.
-
-
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?
-
1 × COSMO C2 Wireless Video Transmitter (TX)
-
1 × COSMO C2 Wireless Video Receiver (RX)
-
4 × High-Gain Omnidirectional Whip Antennas
-
2 × Mushroom Antennas (optimized for short-range, heavy-interference sets)
-
1 × 12V / 2A DC Power Supply Adapter (for stationary monitoring desks)
-
1 × Articulating Magic Arm Mount
-
1 × Cold Shoe Mount Adapter
-
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
4.7 ★★★★★
Based on 1756 reviews
Sort
Product Reviews
★★★★★ 1
Incorrect height shown in listing image.
Color: Tan, Size: 9 Foot
I purchased these for their tall height to go in the ground, but they are too short and I hit my head on them. The height shown in Amazon's pictures does not match the actual height for the 9- and 10-foot umbrella. The heights are something more like 90-95 inches rather than the 108 and 120 inches indicated. The 9- and 10-foot umbrella description seems to refer to the diameter of the umbrella instead. I have returned them, but Amazon has not yet corrected the listing.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2026
★★★★★ 5
Simple, Comfortable, and Exactly What You Expect
Style: Rack with 3 Pairs (5, 10, and 15 Pound)
These are pretty much exactly what you want from a set of dumbbells — simple, functional, and no nonsense. The neoprene coating gives them a comfortable grip and keeps them from feeling slick in your hands, especially during longer workouts or if your hands get sweaty.
The coating also helps keep them from banging up floors or making as much noise compared to bare metal weights, which is nice if you’re working out at home.
Weight accuracy seems fine for general fitness use, and they’ve worked great for things like accessory movements, shoulder work, lighter presses, rehab-style exercises, and general muscle toning. The shape also helps keep them from rolling around everywhere when set down.
They’re not fancy, and they’re not trying to be — they’re just dependable dumbbells that do what they’re supposed to do at a fair price.
If you want straightforward hand weights for home workouts without overthinking it, these are a solid buy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
★★★★★ 5
Reliable, Comfortable Dumbbells I Actually Use Every Day
Style: 12 Pound, Pair, Style: 12 Pound, Pair
I’ve been using the Amazon Basics Neoprene Dumbbell Hand Weights daily, and they’ve honestly been perfect for my routine. Whether I’m doing a quick morning workout or adding resistance to a longer session, these have held up really well.
The neoprene coating makes a big difference—it provides a comfortable, non-slip grip, even during longer workouts or when my hands get a little sweaty. They’re also easy to clean and don’t have that strong rubber smell some weights can have.
I really appreciate the hex shape too. They stay put when I set them down (no rolling across the floor), which makes switching between exercises quick and frustration-free. The weight feels evenly distributed and well-balanced, so movements feel controlled and smooth.
Overall, these are simple, no-frills dumbbells that just work. If you’re looking for reliable hand weights for everyday use—whether you’re a beginner or just need something dependable for home workouts—these are a great choice.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
★★★★★ 5
Great quality and perfect for home workouts!
Style: Rack with 3 Pairs (3, 5, and 8 Pound)
I’m really happy with this dumbbell set. The weights are clearly labeled (3 lb, 5 lb, and 8 lb), which makes it super convenient to switch between exercises. The neoprene coating feels comfortable in hand and provides a good grip, even during longer workouts.
The storage stand is a big plus—it keeps everything organized and saves space, which is perfect for a small home gym. The colors are also nice and make it easy to quickly grab the weight you need.
Overall, this is a great set for beginners or anyone looking to add light strength training to their routine. Highly recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 13, 2026
★★★★★ 5
I’m A PT AND USING THEM IN MY CLINIC. PLS READ HONEST AND THOROUGH REVIEW.
Style: 15 Pound, Pair
I have been a PHYSICAL THERAPIST FOR 30 YEARS and I BOUGHT THESE FOR MY CLINIC. THESE WEIGHTS ARE COVERED IN A GRIPPING MATERIAL, NEOPRENE, MAKING IT COMFORTABLE and EASIER TO USE, ALLOWS YOU TO NOT LOSE YOUR GRIP, and IT IMPROVES THE SAFETY OF THE USER. I WILL BE BUYING THE 12&20 lb sets! THE VALUE FOR YOUR MONEY IS WONDERFUL!! AMAZON BASICS REALLY CAME THROUGH. It DID NOT INCLUDE AN INSTRUCTION GUIDE TO USE WEIGHTS SAFELY AND EFFECTIVELY. STELLAR FORM IS ALWAYS ESSENTIAL.
MY WEIGHTS WENT UP TO 10 POUNDS, SO I DEFINITELY NEEDED ADDITIONAL WEIGHTS for those who can SAFELY TRANSITION . I MAINLY WORK AS A MANUAL THERAPIST …USING ONLY MY HANDS, AND MY BRAIN. TO DIAGNOSE AND TREAT ACCORDINGLY.
(**ANYONE WHO HAS BEEN TO PT KNOWS THIS KIND OF ONE ON ONE TREATMENT IS UNHEARD OF**)
I IMPLEMENTED MYOFASCIAL RELEASE, TRIGGER POINT THERAPY, DEEP TISSUE MASSAGE, AND APPROPRIATE STRETCHING AND EXERCISE . ONCE PATIENTS WERE ABLE, I INITIATED THERAPEUTIC EXERCISE. I WAS GETTING SO MANY REFERRALS THAT I MOVED FROM MY SMALL SPACE AND GOT A LARGER SPACE THAT LOOKS LIKE A TYPICAL PT CLINIC. I STILL EMPLOY ONE ON ONE TREATMENT, NO JUGGLING SEVERAL PATIENTS IN AN HOUR. I HAVE HIRED HELP TO ASSIST PATIENTS WITH EXERCISE AND STRETCHING. I PURCHASED TWO ADDITIONAL SETS ITHE SET IT I DID TO FIRST CHECK THEM OUT. I ADORE THESE AND HAVE SINCE ORDERED OTHER SETS. I LOVE TO WORKOUT AND I NEEDED TO USE THESE WEIGHTS MYSELF!! THERE ARE ALSO PATIENTS OF MINE WHO WILL PROGRESS TO THESE AS WELL. I AM SUPER IMPRESSED WITH THESE WEIGHTS AND CANNOT WAIT TO RECEIVE MY TWO OTHER SETS!! YOU WILL NOT BE DISAPPOINTED.
EVEN IF YOU SWEAT, YOU ARE STILL ABLE TO HOLD ONTO THESE WEIGHTS COMFORTABLY AND SAFELY. SAFETY IS KEY, ALWAYS. I WAS EXTREMELY DELIGHTED THAT THEY ARE SOLD AS A SET BECAUSE MANY ARE SOLD SEPARATELY. THEY FIT PROPERLY ON A UNIVERSAL WEIGHT STAND, SO THEY ARE VERY EASY TO STORE. I CANT WAIT TO GET MY OTHER SETS! IT IS REALLY SAFE AND COMFORTABLE TO USE THESE WEIGHTS.
THEY DID NOT GIVE OFF AN ODD ODOR, which is A HUGE PLUS because SOME OTHER BRANDS SMELL HEAVILY OF PLASTIC OR A CHEMICAL TYPE ODOR. THERE WAS NO ODOR AT ALL. THIS IS A HUGE PLUS. I AM COMFORTABLE SAYING THAT THESE WEIGHTS WILL LAST A LONG TIME BECAUSE OF HOW WELL THEY ARE MADE. YOU CANNOT BEAT THE PRICE EITHER!!
THESE ARE ABSOLUTELY APPROPRIATE FOR PROFESSIONAL USE, AND, THEY ARE MEANT FOR PERSONAL USE AS WELL. SOMETIMES YOU JUST CANNOT GET TO THE GYM SO THIS IS WHERE THEY ARE KEY. HAND WEIGHTS HAVE THE ABILITY TO EXERCISE EACH MUSCLE OF THE TORSO AND ARMS. THERE ARE SOME EXCELLENT WEIGHT CHARTS OUT THERE TO SHOW YOU HOW TO DO THAT. IF YOU ARE GOING TO PHYSICAL THERAPY, THEN YOUR THERAPIST CAN INSTRUCT YOU AND KEEP YOU IN GOOD FORM. YOU COULD POSSIBLY HURT YOURSELF IF YOU WORKOUT INCORRECTLY. AS FAR AS THE LOWER EXTREMITIES, YOU CAN DO GROSS MOTOR EXERCISES BY HOLDING THESE WEIGHTS TO GET YOUR LEG MUSCLES BY DOING SQUATS, WALKING LUNGES, TOE RAISES, AND MORE. I DONT BELIEVE THAT MANY PEOPLE REALIZE JUST HOW MUCH YOU CAN DO FULL BODY EXERCISES WITH JUST TWO HAND WEIGHTS.
IN CONCLUSION , THESE ARE EXCELLENT WEIGHTS THAT I WOULD RECOMMEND TO MY PATIENTS OR FRIENDS. THIS IS A HIGH QUALITY PRODUCT THAT WONT BREAK YOUR PIGGY BANK. I HIGHLY RECOMMEND VERY HIGHLY!. BUY WITHOUT RESERVATION!! A+++
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 23, 2025
recommand products
MS Fashion India Muskan Fancy Mirror Work Orange Smart Earring
17.44
Men JORDAN CRAIG Pure Tribeca Twill Jeans
42.99
MS Fashion India Silver Oxidized Fashion Traditional Double Jhumka Long Black Pearls Earrings
13.42
MS Fashion India Latest Fashion Black Hanging Threads In Jhumka Earrings
13.42
Men BKYS No Money Smile T-Shirt
40.00