Genial on the go

Rarely have I forgiven much star. But this time I could not find a fly in the ointment. The thing automatically configures the receiver. Apple Ipad, Apple Iphone, or Samsung Galaxy S3 Mini. On all devices the reception was not a problem even through walls. This is of course on the substance of the built-in battery of the transmitter, more like 2.5 hours were no longer in it then. But just plug USB Power Adapter with 5V and then everything works again.