Help installation:
This will help you if you want to install the product: when the couple wants to have both product must first press within eight seconds on the "pair" button of the housing of the box, and no more than 8 sec. like me (which resets the box). The [OI] will start flashing and from that moment you have to go to the housing of the PC (or other device) and do the same. I hope this will help some.
Good evening!