Our computer is compact, lightweight, and packed with 20+ essential functions to cater to your cycling needs. Ideal for daily commuting or professional cycling. Features: Featuring a unique green backlight, our speedometer ensures clear data visibility day and night. Perfect for daily cycling, this wireless computer records every moment of your ride. Vibration alarm design. odometer has an internal vibration sensor. Once deployed, it will alarm when touched wireless design eliminates handlebar clutter, requiring only a simple setup of sensor and magnet. 4600mAh large capacity. It can be used as a bank to charge mobile phones, tablets, and electronic devices. Specifications: Material: Battery: 4600mAh Size: 11*5.5*3.5cm/ 4.3*2.2*1.4 in Weight: 177g/ 6.2oz Package list: 1 * bike computer 1 * manual 1 * sensor 1 * ties 1 * wheel magnet 1 * base 1 * wired control button Featuring a unique green backlight, our bicycle speedometer ensures clear data visibility day and night. Perfect for daily cycling, this wireless bicycle computer records every moment of your ride. Vibration alarm design. The bicycle odometer has an internal vibration sensor. Once deployed, it will alarm when touched. The wireless design eliminates handlebar clutter, requiring only a simple setup of the sensor and magnet. 4600mAh large capacity. It can be used as a power bank to charge mobile phones, tablets, and electronic devices.