Bicycle Computers features: Bike Computer Waterproof Lcd Backlight Cycle Measurable Temperature Stopwatch Bracket Waterproof Speedometer Odometer Cycling(Type A1) Color: we send based on the color or size of the main image of the product page. Quantitywe send based on quantity on title, if there is no quantity in the title, we send based on . Colour:Type a1 Bike computer has a 2.8-inch LCD backlight large screen, which can measure temperature and speed, and is easy to read data. Waterproof Bicycle Odometer is easy to install, with time display and mode touch function, suitable for hiking, rock climbing, horse riding and other outdoor activities. Features: Bike computer -Color: As shown. -Material: PVC. -Size: 7.5x5x1.3 cm/2.95x1.97x0.51 inch. -Power supply: 2032 Button Cell. -Backlight: Long Backlight-press two keys at the same time to turn on/off backlight. -Weight: about 134g. -Application: MTB, road bike, fixed gear. Packing list 1 * Bicycle computer 1 * Magnet 1 * Wirelessc sensor 1 * Extension mount 1 * Stickers 6 * Ties 1 * Packing box 1 * Manual 1 * Battery