PRODUCT DESCRIPTION: – Easy installation, comes with all the necessary attachments for different helmets. – Connect to your handphone by bluetooth, to pick up phone call and listen to music. – Comes with cables that allows you to connect GPS/Sat Nav., Media/MP3 Player, and walkie talkie. – Good sound/voice quality within 80km/h – 110km/h; depending on helmet ( full face / open face) – Water resistance: Tested and proven during heavy down pour. – Battery life: 10-13 hours for V8 . You can be assured of the quality and durability of the product. Features: – 850mAH battery that can last 10-13 hours on a full charge – No transmission interference up to speeds of 80-110km/h – Able to simultaneously pair with 2 different Bluetooth enabled mobile phones – High-fidelity Bluetooth transmission of music and voice calls – Automatic reminders that your battery is low and needs recharging over the Bluetooth headset – Paring with rear-seat headset to realize talkback between front and rear seats.