The SMH10 is a Bluetooth v3.0 Stereo Headset with long-range Bluetooth Intercom designed specifically for motorcycles With the SMH10, you can call hands free on your Bluetooth mobile phone, listen to stereo music or voice instructions of GPS navigations by Bluetooth wirelessly, and have intercom conversations in full duplex with a passenger or other motorcycle riders Bluetooth intercom up to 980 yards in open terrain Multi-point for mobile phone and GPS 4-way conference intercom Voice prompts Bluetooth music playback control Water resistant for inclement weather Crystal clear and natural sound quality Up to 12 hours talk time, 10 hours stand-by time 2-year warranty