Product information: Waterproof: Yes Power supply: 2030 Battery(with) Blacklight color: Green Installation location: Handlebar Application: Bicycle, Tricycle Features: Backlight, Multifunction, Easy to use, LCD screen, Waterproof note: Does not include stand size: about 80 x 54.5mm Material: plastic colour: Black Package Contents: 1 x Bike Computer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. 5. BacklightIt is clear day or night.Time display functionAlso can be used as a wonderful gadget for traveling.Multifunction, easy to operatePress M key to switchThree interfaces for different functions.Available for two bicyclsPress M key for 6 sec to switch between 1 and 2 2. Smart chip, Stable performanceThe data will not be lost when power is off, Accurate readings.Waterproof IPX6 waterproof, it will not be affected in 4. Easy to control with mode touch, Perfect companion for your bicycle.Extension mount designEasy to read, More scientific per spective for riding.PortableDurable and convenient. 3. Auto stand-by, auto wake-upIdentify of bicycle movement automaticly, Power-saving(need to touch the key if wireless type).Lasting enduranceLow power comsumption Product features: 1. 2.8 inch wide viewing angleFSTN material, Data can be seen clearly from any angle.Easy to read LCD display with large screen.