I bought the device because it seemed universally. The reproduction of analog audio sources (MP3 stick, etc.) via line-in, it does so in a very good quality. However, I need a Bluetooth transmitter to play my el. Bass guitar over Bluetooth headset. But this case occur significant delays (about 0.5 s) between the Games of the string and the sound from the headphones. This effect makes the device worthless to me. Whether the delays are only at the transmitter or maybe at the receiver in the headphones, I could not tell. Therefore, I can only give three stars.
