Features 100% brand new and high quality Wired Bicycle speedometer with LCD display. Monitor your bikes' speed, distance and riding time. Perfect to use when riding. Ideal companion for your riding. Note: the package is attached one CR2032 button battery for the bike computer, while the users need to buy another 12V/23A dry battery for the sensor themselves. Specification： SPD: Current Speed. ODO: Odometer. DST: Trip Distance. MXS: Maximum Speed. AVS: Average Speed. TTM: Total trip time. TM: Trip time. RAT: Riding all time. CLK: Clock (12H/ 24H). SW: Stopwatch. Temperature. TM up trip time up. TM down trip time down. Trip UP trip distance up. Trip DN trip distance down. Sleep mode. Comparator. Maintenance alert. Machine oil reminder. Over-speed reminder. Setting type circumference. Low battery indicator. Auto White LED back light. Freeze frame memory. Separated button. Auto: ON/ OFF. Device Type: Bicycle Speedometer LCD Screen: 4 * 3.3cm Dimension: 5 * 4 * 1.8cm Weight：67g Package Includes 1 x Bicycle Wired Computer Odometer Speedometer. 1 x Mounting Shoe. 1 x Set of Cable Ties. 1 x Wheel Magnet. 1 x Manual User.