I got me the device as a backup for my Sony SBH20? bought. It connects perfectly and the optics fits. Especially at low volumes is unfortunately a significant noise to be heard. Not that bad, because I like to sound like it. Very disturbing it is but if you are used to it that the jump to the next song by pressing the switch succeeds by pressing the button showing the arrows in the same direction as the play button. For me it is exactly the opposite. Back is back in front and above; (
