Product Description 【Has all the basic functions】 Speed (SPD), maximum speed (MAX), average speed (AVS), total mileage (ODO), trip meter (DST), riding time, elapsed time (TM) 【Suitable for all types of bicycles】There are often no limits to your wheel size, but please note that the distance between sensor and receiver should not be more than 60cm, transmitter and magnet at most 3mm, or it may not receive the signal. 【Multifunctions】Small size, light weight, with waterproof function, it works well to measure speed, distance, riding time, which the serious cyclist or fitness fanatic wants to have in the knowledge. 【Energy saving and automatic mode】After no signal input for 300 seconds, the screen will go into sleep mode with LCD displays. It has memory function. This bike computer will wake up automatically when you shake it or any signal is input or any button is pressed. 【Digital LCD Screen】The large LCD screen ensures that you can easily read your statistics.