I was very pleasantly surprised by the quality of this product. It works fast, there are no freezes even in games. I didn't notice any glitches or loss of video quality. My transceiver is only 20 feet apart without the usual obstacles, so I can't explain how it would go 30 feet through a wall. However, the transmitter is very close to my laser printer and the signal must pass through it. I was concerned that there would be electrical noise issues and that I would have to move the printer, but that had no effect. My only complaint is that the cost of additional channels is very high. $180 for receiver and transmitter together and $112 for transmitter only. Now that I have it I would like a different transmitter but I can get by with one.
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