Mountain Road Cycling Wireless Code Table Waterproof Luminous Speed Meter Speed Table - Ri

2.8 INCH LARGE FSTN SCREENIPX6 Waterproof, Full screen backlight, Two Bicycle I/II Using, Memory function. Long Backlight-press two keys at the same time to turn on/off backlight. Long backlight -press two keys at the same time to turn on/off backlight. SMART CHIP, STABLE PERFORMANCE, THE DATA WILL NOT BE LOST WHEN POWER IS OFF ACCURATE READINGS. MULTIFUNCTION,EASY TO OPERATE. Preen M key to switch tree interfaces for different functions. Riding time - The riding time will be recorded all the way as long as the bicycle computer has electricity (the intention of the factory design is to record a certain journey of time).Product size: 7.5*5CM