Meanhoo Digital wire/wireless Bike Cycle Computer for bicycle,LCD Backlight speedometer odometer Road Bike BMX/Freestyle Bike Alpine Bike Mountain Bike,random color4.5x4.5cm Meanhoo specialized in outdoor equipment. Specifications SPD: CURRENT SPEED. Wireless LCD Bike Bicycle Computer Odometer Speedometer. "+" "-" compapator.AUTO: ON/OFF setting speed scale(KM/H.M/H) package:1 piece