Sena SMH10-11 Bluetooth Headset Dual Pack The SMH10 is a Bluetooth v3.0+EDR Class 1 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. Thanks to the latest Bluetooth v3.0+EDR and the advanced digital processing technology, the SMH10 offers the best sound quality for both incoming and outgoing sound in its class. Also, the easy-to-access and intuitive button operations make the SMH10 a perfect companion for motorcycles. Bluetooth 3.0 Includes Universal Microphone Kit Bluetooth intercom up to 900 meters (980 yards) Four-way conference intercom Conference phone call with intercom participant Multipoint for mobile phone+GPS Voice prompts Bluetooth stereo headset for Bluetooth audio devices such as MP3 players Bluetooth music playback control by AVRCP Play, pause, track forward and track back Easy operation by versatile Jog Dial (Patent pending) Sufficient sound level with integrated audio booster Bluetooth handsfree for Bluetooth mobile phones Bluetooth headset or stereo headset for Bluetooth GPS navigations Stereo music by 3.5mm audio cable Water resistant for use in inclement weather Crystal clear and natural sound quality Up to 12 hours talk time, 10 days stand-by time Can be used while charging on road trips Individual volume control for each audio source Firmware upgradeable Peace of mind - thanks to the two-year warranty Please Note Some of the above features require updating the firmware to the latest v4.1. The firmware is a free download from Sena Technologies .