Features:1. Multi-functional Design: The code meter has clock setting real-time speed average speed maximum speed heart pedal frequency record calorie consumption carbon reduction temperature measurement total mileage total time seven-day memory stopwatch and other functions.2. Visible at Night: Full screen backlight fearless night no obstacle data observation at night convenient operation left and right keys pressed simultaneously to switch the backlight.3. Use Occasions: Two kinds of data co-exist one meter for two uses support two different tire size vehicles to record data together.4. Ultra-long Standby: USB charging standby worry-free 150 hours of ultra-long standby 15 hours of long battery life.5. Detail Design: Strong magnetic induction more stable data more stable cycling detection data. Daily waterproof you can ride in the rain please cover the USB cover tightly in use do not long time in the rain or soak the code table.Specifications:Material: ABS PlasticSize: 64*50*13.5mmWeight: 30g includes: 1 * Set of Speedometer