Satellite Radio Superstore exclusive product! With this device you can power any SIRIUS and XM Satellite Radio 5 Volt plug and play receiver using the supplied USB power cables. It also features a wireless digital modulator which transmit a wireless signal to your vehicle stereo. Simply tune the modulator to a specific frequency and match that frequency on your vehicle stereo and music will start playing through your vehicle stereo speakers. Now you can listen to Satellite Radio without having to run wires to your vehicle stereo. It also features Bluetooth connectivity for use with any Bluetooth compatible device such as cell phones or other Bluetooth devices.