The Roverbeats Unify enables Bluetooth 4.0 capability on traditional audio systems lacking Bluetooth functionality. Just connect it to your system’s A/V, RCA, or 3.5mm jack input. The Unify is the first Bluetooth receiver to have a 200mAh battery, allowing it to provide up to 10 hours of continuous high quality music playback. And with NFC capability, the Unify can quickly connect with any other NFC enabled device in the matter of seconds. The adapter gives you wireless control up to 33 feet. It currently averages 4.5 out of 5 stars on Amazon from over 1,100 people (read reviews), where its typical list price of $36 has been significantly reduced to just $17.