FEATURES Upgraded version of the original SMH10 system Bluetoothspecification v4.1 BluetoothIntercom up to 1 mile in open terrain Ultra-slim and light for sportbike helmets Four-way conference intercom through One Touch Group Intercom Also uses the Universal Intercom to communicate with all Sena and non-Sena Bluetoothheadsets on the market Simplifies connections for earbuds and microphone (wired or boom-type) by condensing them down to a single clamp connector, minimizing the number of wires and enhancing reliability Easy operation by versatile Jog Dial makes it effortless to operate Micro USB port for battery charging and future software updates Bluetoothmusic playback control: play, pause, track forward and track back Remarkable battery life: talk time up to 12 hours; standby time up to 10 days; can be fully charged in as little as three hours Advanced noise control for less road noise and clearer communication Built-in FM radio tuner with a station scan-and-save function Water-resistant for use in inclement weather 10S Smartphone app makes configuration a snap - change settings, set groups of intercom friends and access a Quick Guide; pair up to two mobile phones for convenient hands-free calling 10S Single Unite Kit Includes: 1- Bluetoothmain module 2- Foam speaker covers 1- Clamp unit 4- Speaker pads 1- Microphone cap 2- Speakers 1- Wired boom microphone 4- Hook-and-loop fasteners for speakers 1- Boom microphone holder 2- Microphone sponges 1- Wired microphone 1- USB power/ data cable (micro USB type) 1- Stereo audio cable, 2.5mm to 3.5mm with straight type 1- 10S cigarette charger 1- Glued surface mounting adapter 1- Hook-and-loop fastener for boom microphone 1- Hook-and-loop fastener for holder 1- Hook-and-loop fastener for wired microphone 1- Allen wrench 1- Owner's manual 10S Dual-Pack Kit includes two complete sets of the 10S Single Unit Kit in one box NOTE: Do not apply any other Sena cigarette charger to the 10S main module.