CoolChange Bike Computer Digital Tachometer Waterproof Cycling Speedometer Xiaomi Bicycle Cycling

Specifications: Brand CoolChange Model 57027 English Version Wireless Yes Screen 2.7inch Battery CR2032 Charging USB Size 40 x 65 x 14mm / 1.57 x 2.56 x 0.55inch Color Black Weight 100g Features:Real-