Small in size and light in weight, wired and waterproof design convenient and . Multi-functions: the computer measures average speed, maximum speed, distance and riding time etc, to keep track of your Cycle effectively. 300 seconds without signal input, screen display enter standby mode, clock retention. If there is a traffic signal input or any key, it can revert to the shutdown mode and memorize the data before shutdown. Powered by a LR1130 button battery (note: the battery is included).<br><br>Colour:Black Material:plastic<br><br>Package Contents: 1 x Bike Computer 1 x English instruction manual<br><br>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.