DEWALT 20V MAX Bluetooth Jobsite Radio Adapter  (DCR002) Streams Music From Cellular Phone Or Mobile Device To Any Jobsite Radio With 3.5mm Aux Input Powerful Transmitter Works Up To 100ft Docking Interface *Maximum initial battery voltage (measured without a workload) is 20 volts. Nominal voltage is 18 Streams music from any Bluetooth-enabled device to your radio Rechargeable from included AC/USB to USB/USB Micro adapters and runs up to 8 hours Range of 100 feet, up to 10 stories high Compatible with car radios and other devices with auxiliary input ports