Thank you for viewing my listing. This is a wired cycle computer (measuring device) that can measure speed, distance, and more. It is waterproof, so you can use it with confidence even on rainy days. It has 7 functions, which should make cycling even more enjoyable! Function 1: Speedometer (current speed) Function 2: Odometer (distance traveled so far) Function 3: Trip distance Function 4: Maximum speed (record of the highest speed achieved) Function 5: Average speed Function 6: Riding time Function 7: Clock (current time) Installation is simple: attach the monitor to an easily visible position such as the handlebars, attach the magnet to the spokes, and attach the sensor to the front fork. Use this meter and go cycling far away! ●Specifications Battery used: Main unit - 1 button battery *Batteries included ●Set contents Monitor unit x 1 Sensor and holder x 1 Magnet x 1 110g Many functions such as speed, distance, total distance, riding time, and clock. Comes with a Japanese instruction manual for peace of mind♪ 2 sets for 1900 yen. If you wish to purchase, please comment. ★Condition★ New ☆Shipping☆ Free shipping Simple packaging Shipping method will be determined by us. We will accommodate other delivery methods if you have a preference, but the buyer will be responsible for the cost. There may be scratches or stains due to storage or logistics. Includes shipping #New#Japanese instruction manual included#Bicycle cycle meter Speed Distance Riding time measurement