Why Choose Our Motorcycle Bluetooth Headset?BT-S2 is designed for the motorcycle rider and passenger who wish to have clear and reliable wireless communications while riding. This headset is compatible with Bluetooth cellular phones and can be suited to any sort of helmet for motorcyclists. It can call hands-free on your Bluetooth mobile phone, listen to stereomusic or voice instructions of GPS navigations by Bluetooth wirelessly, and have intercom conversations in full duplex with a passenger or other motorcycle riders,it offers the best sound quality for both incoming and outgoing. Features:1, BT-S2 could pair other BT-S series easily. 2, Audio line could receipt signal from other devices.3, Enjoy the cell phone music through A2DP or connect GPS.4, In headset Intercom mode, riders can communicate clearly within 1000 meters.5, The built-in FM radio automatically selects the channel with the best frequency.6, Noise suppression technology can provide best sound quality for both incoming and outgoing sound. 7, It is able to meet the demands of riders in any kinds of activities, including biking, skiing, climbing and hiking. 8, A group of 2-3 riders can communicate each other with full-duplex communication technology,supports 3 riders to pair and only 2 riders intercom at the same time. Specifications:Bluetooth version: 3.0 EDRSupports: A2DP and AVRCPCharging Time: 3hoursCertificates: CE、 FCC、 ROHS、BQBPackage Include2x Motorcycle Headset（host) 2x Earphone 2x Headset Clip 4X Fastening Screws4X Velcro pads 2x Audio Cable 2x Screw Driver 2x USB Cable 2x Travel Charger 1x User ManualWarranty period : 12 months.