Sena 10S Bluetooth Headset Sena 10S Bluetooth Headset enriches your riding experience by adding communication with up to four riders through the One Touch Group Intercom. Features a crystal-clear HD audio up to 1.6 km (1 mile) away. The HD quality sound is a hallmark of the 10S, as well as Sena's Advanced Noise Control that ensures ambient noise doesn't interfere with incoming and outgoing audio. This universal intercom allows communication with Sena and non-Sena communicators alike. Effortlessly change settings with the Sena Smartphone App to set groups of intercoms friends and access a Quick Guide. You can also set up your 10S to pair with up to two mobile phones for convenient hands-free calling. Bluetooth 4.1 technology, improved stereo Bluetooth speakers, and advanced architecture creates a smooth, crisp, and responsive user experience. Features Talk time: 12 hours Stand-by time: 10 days Operating temperature: -10C - 55C (14F - 131F) Dimensions: Main module: 85 mm x 57 mm x 27 mm (3.4 in x 2.2 in x 1.1 in) / Speaker: driver unit 36 mm - thickness 6.5 mm Boom microphone length: 183 mm Weight: Module: 57 g (2 oz) Bluetooth: Headset Profile (Hsp) Hands-Free Profile (Hfp) Advanced Audio Distribution Profile (A2Dp) Audio Video Remote Control Profile (Avrcp) Bluetooth 4.1 Intercom: Working distance: up to 1.6 km (1.0 miles) in open terrain Built-in SBC Codec Advanced Noise Control Wide volume control Sample rate: max. 48 kHz (Dac) Earbud port built into each clamp unit Battery: Lithium polymer, 3 hour charging time 10S headset main unit Clamp unit Speakers Wired boom microphone Boom microphone holder Microphone sponges Wired microphone USB power / data cable (micro Usb) Stereo audio cable, 2.5mm to 3.5mm straight Glued surface mounting adapter Foam speaker covers Speaker pads Hook and loop fasteners for speakers and microphone(s) Allen wrench Certificates: CE, Fcc, IC