The device has me actually quite liked, but you can not operate quietly: It rustles and chirps much too loud to it, for example to use at your desk when it is right next to one. As a player I've AUX, tried Bluetooth / iPhone and Bluetooth / PC, each in battery operation (fully charged) and in network operation. Habs returned and bought a TDK T78920 - there's nothing of noise and chirping sound.