Features: 7 Functions: Wireless bicycle computer displays Riding speed/time/distance, Average/Maximum speed, Total riding distance, Temperature. 3 Extra Features: Include 12h / 24h clock, metric/imperial unit, auto ON/OFF. Backlight: Large LCD display with backlight allows you to read all riding data easily and clearly. USB Rechargeable: 120mAh lithium battery takes only 1 hour to full charge, and lasts for 12 hours with backlight on, up to 2 months standby with backlight off. Convenient: 2 smart buttons for easy operation. Small size, lightweight and wireless design makes it more convenient. Computer Mount Included: Gives the user convenient view of the display while keeping their eyes on the road. 31.8mm bar clamp diameter, easy to install. 11 Functions: Clock Riding speed Riding distance Riding time Average riding speed Maximum riding speed Total riding distance Temperature LED backlight Auto on/off function Metric/imperial switchable Specifications: Battery: 3.7V 120mAh polymer lithium battery Charging Time: 1 hour Standby: 12 hours with backlight on; 2 months with backlight off Dimension: 40 * 65 * 17mm / 1.6 * 2.6 * 0.7in Weight: 32g / 1.1oz Computer Mount: 10 * 3.5 * 3.8cm / 3.9 * 1.4 * 1.5in Weight: 22g / 0.8oz Package List: 1 * Bike Computer 1 * Computer Mount Holder 1 * Sensor 1 * Magnet 4 * Zip Tie 1 * Rubber Ring 1 * Charging Cable 2 * Rubber Pad 1 * Bracket