With a good hi-fi system this device works perfectly. The Bluetooth quality is obviously not that of a CD, it will surely push the Bluetooth signal from your so thoroughly. laptop to get a correct listening volume but the rendering of the sound spectrum is consistent with what is expected of this kind of product. Only flat for my taste it's the absence of switch that requires the disconnect and reconnect to get recognition of the phone after a long time of non-use and always on.