WEST BIKING Bicycle Computer Rainproof Waterproof Wireless MTB Mountain Road Bike Cycling LCD Speedometer Odometer Stopwatch      Feature:      1. Large screen and large font: convenient to view computer information;      2. Waterproof protection: short time immersion in water, light rain or heavy rain is OK, but it is not recommended to rain for a long time, in order to prevent water accident;      3. Night light: you can also see the information on the code table at night;      4. Wireless computer: easy to install.            Specification:      Main material: PVC      Product color: as shown      Product size: about 60x44x15mm/2.36*1.73*0.6in      Net weight: About 32g      Language: English      Power supply: CR2030H button battery (built-in)            Note:      Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you       Please allow 1-3cm measuring deviation due to manual measurement.                   Packages:       1 X Bicycle Computer         1 Set X Accessories