(Black) Waterproof Speedometer - Backlit LCD Screen - Wireless - Multifunctional

Day & Night Mode: Green and white backlight for day and night use to distinguish between day and night. Note: A slight clicking sound from the device is normal and a result of the automatic function design.Wireless and Waterproof Design: Wireless and waterproof design makes it more convenient and durable. Never worry about complicated wire installation on your handlebars; the waterproof design means you don't have to worry about rain, but do not expose it to thunderstorms or submerge it in water.