DescriptionThis small size and light weight speedometer and odometer is for measuring both speed, distance and riding time, especially suitable for cycling or fitness enthusiasts. The LCD display with big numbers allows you to easily see the states even you are riding. Its waterproof design makes it more convenient and durable.Feature- Color: Black_x000D_- Material: ABS and electronic components_x000D_- Size: 5.70X4.10X2.00cm/2.24X1.61X0.79in_x000D_- Note:English Edition_x000D_- Multi-functions: Can be used to measure both speed, distance and riding time, especially suitable for cycling or fitness enthusiasts._x000D_- WATERPROOF: Its waterproof design makes it more convenient and durable._x000D_- LCD Display: LCD display with big numbers allows you to easily see the states even you are riding. Backlit LCD design ensures the display is always readable, even for night time cycling._x000D_- Compact design: small size light weight speedometer is easy to install on the handlebar_x000D_- Compatibility: Road bicycles, mountain bikes, folding bikes,and other common bicycles are compatible with this computer._x000D_Packing list2 X speedometer_x000D_2 X base sensor wire_x000D_2 X magnet _x000D_12 X binding wire _x000D_2 X instruction manual