Description: This bike wireles computer with multi kinds of functions, including average speed, max speed, riding time, riding distance, clock, LED backlight,maintence reminder, temperature, speed-up speed-down indiactor and etc. Automatically wakes from sleep mode upon sensing vibration in the bicycle. Bright LCD display to easily view ride statistics. Small size, light weight, wireless, waterproof design makes it convenient and durable. This bicycle computer measures speed, distance, and riding time. Provides backlight for easy viewing during dark hours. The backlight will automatically turn on when any button is pressed. Easy to navigate interface with only two buttons to access all measurements. Customizable to most common tyre sizes for accurate stats tracking. Specification: Material: Plastic Size:6x4.4x1.5cm/1.73x0.24x0.59inch Screen Size: 2.1inch Battery: CR2302 *1 Installation Position: Handlebar Display Five Languages(English,Deutsch,France,Dutch,Espanol) Transmitting distance:the max 60cm/23.62inch Package Includes: 1 Piece Bike Computer 1 Piece Bracket 1 Piece Sensor 1 Piece Magnet 2 Pieces Sponge Pad, Plastic strap 1Piece Rubber loop