Wireless bike computers lack of wires significantly adds ride comfort. A bicycle computer is considered a convenient accessory that keeps the cyclist informed of many important details. On it you can see how fast the bike goes, find out how long the distance has been traveled. The more functions the device contains, the more perfect, interesting and useful it is.
Stopwatch and Accessories: Waterproof Stopwatch Type: Wired and Wireless Battery: CR2032 Color: Black, Red Size: About 6CM*4CM Feature: Backlight,durable ,convenient