Waterproof Bicycle Computer Large Screen Wired Speedometer Road Bike Computer Odometer with LCD Backlight Cycling Computer Be Careful: Due to the limitation of transportation , Button battery CR2032 *2 are not included. No battery, no battery, no battery. You need to buy the corresponding type of battery at the local store. Thanks for your understanding. Description: [Product name] SD-576A large screen touch wired bicycle computer [Material] Engineering plastic ABS [Display] LCD screen [Size] 7.4 * 4.5 * 1.6cm [Weight] About 108G [Power supply] Meter button battery CR2032 * 2 (These two batteries are not included in the package. You need to buy it yourself.) [Configuration] Meter head * 1, base sensor line+remote control button * 1, magnet * 1, binding wire * 6, instruction * 1 [Color] Black/blue/green/yellow NOTE 1.Please allow slight deviation for the measurement 2.Due to the light and screen difference, the item"'"s color may be slightly different from the pictures,thanks for understanding.