Bluetooth Music Receiver can pair most Bluetooth-Enabled Devices to Any Speaker with a 3.5mm Auxiliary Input and Enjoy Superior Music Quality and Convenience of a Wireless Connection Wirelessly Streams Audio to a Car Stereo System Via the 3.5mm Input So You Can Enjoy Your Favorite Tunes (Cable Included) Powerful Speakerphone: Allows You to Talk Through the Microphone when Receiving a Phone Call Bluetooth V2.0 with EDR for Quality Wireless Performance Receives Up to 33 Feet Away LED Status Indicator Micro USB Charging Port (Cable Included) Rechargeable Lithium Battery Bluetooth Frequency: 2.4-2.4835Ghz Bluetooth Profiles: A2dp