The Cobra AirWave® receiver connects to stereo equipment via cabling options that include 3.5mm to 3.5mm (headphone jack) cable and 3.5mm to RCA cable. To recharge the built-in battery of the Cobra AirWave® we have also provided a USB to micro-USB. The user pairs their media device to the Cobra AirWave® unit, which acts as a wireless bridge allowing the user to transmit audio via Bluetooth® to older home or car stereo systems. This wireless connection offers users the freedom to be away from the stereo and control their music from up to 30 feet away.