the device is supplied in a sealed pouch which I carefully opened to the device to send any back. I almost have to make the right of return, because the first attempt the IR extender worked at all. No matter how I held the IR transmitter on my device in the cabinet (of course at the IR receiver) no orders were passed. Then I remembered a review of another buyer, who wrote: "Screw the device and adjust the Potié". So I screwed on the device and put the Potié to maximum. After retrying the IR transmission now worked perfectly well as the holding of the volume keys is not a problem. After the positive test run I screwed the unit back together and stuck the IR transmitter on my device in the closet, there was the next problem: the cable is too short! My devices are down in a sideboard. But the cable is not sufficient from the bottom to the top of the sideboard. Now the IR receiver (black mouse) is under my sideboard and functioning properly. (I hope that my dog does not regard it as a new toy) (-:
CONCLUSION:
Very "cheap" version of an IR extender to arrive. The "cheap" but is not only for the price but also for poor workmanship, the short cable of the IR transmitter and the poor factory defaults. Here man can clearly see the Far Eastern products not yet in line with our product standards and has a quality and a final inspection at the factory found never happened.
The device I recommend only people who are not afraid of naked Electrical and who have a Bastell gene.
But the China-thing works according described steps properly.
Then a lot of fun in the purchasing decision, I hope I could help you no matter how you decide you now.