Featuresr multifunctional includes all vital functions for novices and pros aliker easy to read big four line backlit lcd displayr durable and waterproof for use in all conditions can be totally soaked in waterr easy installation no tools requiredr powered by cr2032 batteryr ideal companion for your ridingr r note after being soaked in water please wait a moment before pressing any buttonr r functionsr 1spd current speedr 2odo odometerr 3dst trip distancer 4max maximum speed