Bike Computer Blusmart Wireless Touch Mode Bike Computer Waterproof Automatic Wake-up Large LCD Screen Display with Green Backlight 22 Function Bicycle Odometer Touch Mode allow you to control the bike computer by gently touching. Just like control your iPhone by finger, now you're allowed to control a bike computer by gently touching during riding without pressing forcefully. Convenient and Fast to record the speed and mileages without any delay. This bike computer will automatic wake-up to record your riding directly at any time you ride the bike after a long or short time rest. Large LCD Screen Display with green backlight allow you to read the digital easily remotely, especially in the deep dark night or in the long tunnel. Only one touch on the MODE or SET will turn on the backlight. 22 Function to meet your different riding needs. This bike computer not only can record your riding data like Speed comparing, Average, Maximum, Relative, Riding time, Riding distance, but also can record calorie and fat you consumed, temperature, stopwatch and so on. Waterproof design makes it more durable. The outline of the bike computer is simple and cool, what's more with the waterproof design, it will always keep in fashion and new.Sensor and receiver distance. Not exceeded more than 60cm , then the distance between the transmitter and magnet not more than 1.5mm.Teaching video: https://www.youtube.com/watch?v=Pfskqo6KO-M&feature=youtu.be