Features1Bike Computer Function: Driving speed, total mileage (09999KM), single trip mileage, maximum driving speed, average speed, cumulative travel time, single travel time, single trip time, (12H 24H) clock, stopwatch, measure the ambient temperature (1050), travel time is counting. 2Bicycle Computer Function: Countdown to the driving time, driving mileage is counted, countdown to travel time, speed comparison tips, maintenance reminder function, refueling reminder, speeding reminder, tire circumference setting (mm9999mm), total mileage initial value setting (km/mile), initial setting of accumulated time, driving data sampling function, switch. 3Large Screen Display: Tool free installation, luminous large screen display, and large English fonts, automatic switching within kilometers. 4Product Material: Bike wired computer is made of ABS and electronic components materials. Sophisticated technology, interfaces seamlessly, super waterproof. 5Luminous Design: The bicycle computer watch is bright and luminous, more dazzling and safer, providing you great riding experience.SpecificationItem Type: BikeComputerMaterial: ABS, Electronic ComponentsBike Computer Battery Type: Button Battery (Delivered with Built in Battery)Battery Model: CR2032Number of Batteries: 1Battery Capacity: 210mAhBike Computer Function:1: Driving speed2: Total mileage (0-9999KM)3: Single trip mileage4: Maximum driving speed5: Average speed6: Cumulative travel time7: Single travel time8: Single trip time9: (12H 24H) Clock10: Stopwatch11: Measure the ambient temperature (10-50)12: Travel time is counting13: Countdown to the driving time14: Driving mileage is counted15: Countdown to travel time16: Speed comparison tips17: Maintenance reminder function18: Refueling reminder19: Speeding reminder20: Tire circumference setting (mm-9999mm)21: Total mileage initial value setting (km/mile)22: Initial setting of accumulated time23: Driving data sampling function24: SwitchPackage List1 x BikeComputer1 x Base1 x Magnet6 x Cable Tie1 x Manual