The SMH10 is a Bluetooth v2.1 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 v2.1 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.