Raniaco Digital kitchen Timer , Countup & Countdown Timer Maximum to 99 Minutes 59 Seconds Modern-day, cutting edge wireless bicycle computer complete with an easy-to-read LCD display Small size, light weight, multi-function: Functions as a bicycle speedometer and odometer, measuring both speed, distance and riding time Wireless and waterproof design makes it more convenient and durable Please note the slight rattle sound from device is normal phenomenon, which results from the design of wireless automatic function The backlight can be set in either green or white color