The bike computer is handheld size for easy installation of bike, IPX6 waterproof for outdoor rainy day, white backlight for anytime view. Built-in positioning chip, it can accurately display speed, altitude, distance, riding time, odometer, etc. Features: 1.6 inch mono LCD, well display effect under the sun. White backlight. Built-in high-precision positioning chip. Display speed, altitude, distance, riding time, odometer, etc. History cycling list to view. USB rechargeable 400mAh cell. IPX6 waterproof. Specifications: Brand: MEILAN Color: White, Black, Red (optional) Waterproof: IPX6 Package Weight: 90g / 3.17ounces Package Size: 140 * 115 * 48mm / 5.51 * 4.53 * 1.89in Packing List: 1 * Bike Computer 1 * USB Cable 1 * Bracket 2 * Bands 1 * User Manual