Wireless Bluetooth 4.0 Bicycle Computer

Stopwatch and Accessories: Wireless Stopwatch
Name: Wireless Bicycle Computer
Compatible With: Speed/Candence sensor, Heart rate monitor
Rechargeable: 800mAh battery
Mount: 2 Ways/ handlebar & stem
Screen: 2.5inch HD
Backlight: 3 modes for day & night
Support: Wireless bluetooth 4.0 connect
Waterproof: IPX5
Working time: 120 hours without backlight
Available for: Any bike wheel size