As a bike computer, measuring current / average / , trip distance / , calories and other real-time riding data.Quickly and accurately get the data you need! Suitable for most types of bicycles.Perfect to use when hiking, climbing, riding and other . Suitable for most types of bicycles, such as mountain bikes, folding bicycles, ordinary bicycles, dirt bicycles, stationary bikes and so on. Features - Color: Black. - Material: Plastic+LCD+Electronic Component. - Size: 7 x 5 x 1.5cm - Dimensions: 2.8 inch - Models: or wireless - Colors: Black - Power supply: 2032 battery - Other Feature: Waterproof - Waterproof and Main Functions: Current speed, clock, Average Speed, Odometer, Maximum speed. - Multifunction: size, light weight,waterproof design makes it Portable, durable, comfortable and convenient. This computer measures speed, distance, and riding time.Ideal assistant for training. - Applicable: Road bicycles, mountain bikes, folding bikes,and other common bicycles are compatible with this computer. Suitable for most types of bicycles.Perfect to use when hiking, climbing, riding and other . - Day and Night Use: Provides backlight for easy viewing during .Perfect for daily Use. Package list: 1 x Tachometer(Battery Included) 1 x Probe Base 1 x Wireless Probe 1 x magnet 6 x Nylon Cable Tie 1 x The Instructions 2 x Absorbent Pads