Bought it because my current Bluetooth Receiver "Belkin AirCast" unfortunately does not have built-in battery, of course, it all works as it should be, the audio quality compared to the Belkin is however insufficient and it shows even when car radio. Even the cheaper model is the Marmitek BoomBoom75 Avatree aturn clearly superior to what the audio quality is concerned and therefore it had sent back and look more to the market.