[< 1 lb (0.5 kg)] Works as described so far with no noticeable lag between spark 4k transmitter/receiver camera and the other SDI camera.

[0.225 lb] I have two systems of these Spark transmiter /reciever set, they work great, the only thing that I would like to change is the battery life...it is to short, to go through a complete streaming event.
To fix this I purchased a power bank and I connect it to the usb port in the transmiter...it works very well.

[0.225 lb] I love this set of Transiers. Very easy to setup and run. In fact, no setup is required! Pairing is almost instantaneous. They do get hot during use and the internal fan is quite.

[< 1 lb (0.5 kg)] I've been using this on my home office HTPC for about 4 months. It connects to my headset without issue everytime. battery life is great. I do suggest using a shielded cable as at first I had it plugged in to my computer for power while using it and there was way too much interference. Changed my source of power and all is perfect now. it comes with different cables to suit various needs. Range is good, not great but just good (that could also be my headset).
I have not used it for recieving so cannot comment on that part. What else would you like to know...it works.

[12" (30.5 cm)] Works with a variety of equipment, receives and transmits well. Good Product. I bought it because my xbox 1 doesn't have bluetooth for some insane (likely branding) reason. Works fine with the xbox 1.

[0.225 lb] Officially Teradek says there is less that 1 millisecond of delay but I couldn't see any delay with my eyes. This is a big step up from other wireless kits from folks like Hollyland that claim .08 seconds but in reality it's more than like twice that. This really doesn't have any latency. The feed is so instant that you can pull focus with the Spark 4k. Even though they don't exactly bill this as a system to pull focus. They seem to be pushing this as more of a live stream or event solution. However wireless video systems designed specifically to pull focus are so incredibly expensive but I'm happy to say you can use this in your regular video production shoots to pull focus without issue.



The other big selling point for me was the quality of the actual video stream you get. You can get up to 4k 30fps 10bit 4.2.2 in the actual stream. Again, this is a big step up from most system that only offer 1080p 60fps max with video quality that is just terrible.


I am not a wireless video guru so the fact that these were so incredibly easy to get up and running sealed the deal for me. Literally just turned on both units and they automatically synced up. No extra button presses to get things running. Nothing to really setup in any menus. Just turn them one, briefly wait and your video signal is flowing.

[1 x 23 A] I use the Aluratek ABC02F Universal Bluetooth Audio Receiver and Transmitter connected to the Optical Audio output on my Sony TV. It pairs with a set of Sony Bluetooth earbuds to provide a separate channel for audio for my aging ears while the TV's audio continues to function independently for the rest of the family.

The optical connection to the TV was simple and the ABC02F paired quickly and easily to the Sony Earbuds. The ABC02F is plugged into a USB port on the TV and is always on so the earbuds are reconnected within the time it takes to remove them from their charger/case and insert them into the ear.

[< 1 lb (0.5 kg)] That's pretty much it!