Cycling Bicycle Computers Waterproof Speedometer Bike Computer Odometer Features Handy Compact Portable and Convenient .Easy to install easy to read LCD display ideal companion for your bicycle .Compact appearance design multi-function stopwatch is economical and practical. Bike Computer Waterproof Wired Multifunctional Bicycle LCD Computer Speedometer Cycling Odometer Stopwatch.Waterproof protection. Immerse in the water for a short time it is fine in light rain or heavy rain but it is not recommended to rain for a long time so as to prevent water from causing accidents. .MaterialEngineering plastic ABS electronic components.Display LCD display.Size51x42x18mm.Weight about 65G Package Include: 1x set of Wireless Cycling Bicycle Computers Origin:CN(Origin) Certification:NONE Stopwatch and Accessories:Waterproof Stopwatch a:Swimsuit b:Swimsuit Fused c:Swimwear d:Women Swimsuit e:Ladies swimwear f:swimwear Ladies g:swimwear Women h:One Piece Swimsuit i:Bikini Set j:One Piece Swimwear k:Plus Size Swimsuit