The smh10 is a Bluetooth 3.0 stereo headset with long-range Bluetooth intercom designed specifically for bell mag-9 and bell qualifier dlx. 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. the smh10 offers exceptional 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.