Unfortunately, the first device that goes back was broken, as it has the wireless connection can not be found. Even repeated reseten as recommended in the manual, the problem has not been solved. The replacement unit will now instantly connect and after entering the PIN (WPA2) can also be a lot of radio stations (sorted by genres) found. A registration or similar is not necessary here. There is also a search feature that you can specifically search for stations. At some stations you can also choose between unterschieldlichen transfer rates. Play from a USB stick works perfectly and the sound quality is fine. However: The batteries (see photo), which are included with the remote control, are a joke! In both cases, they are more like shriveled potatoes as batteries (presumably leaked, see photo). They also fit with the use of force in the battery compartment. So best dispose of the same and take others. As the first device is defective and otherwise look for the batteries a point deduction, the 5th time, how long keeps the little ...