Bluetooth-compatible for Smart Cadence Device Bicycle Stopwatch Bike Computer Wireless Counter Tracker for Fitness Ride Bike Camping Description: brand new and high quality Features: Multifunctional wireless bike speedometer, contains all the important functions for beginners and professionals alike. ABS material with good durability and have a clear view of the data even at night. Durable material and waterproof function for use in all conditions. Specification: Type: Bicycle Wireless Stopwatch Material: ABS Applications: for Fitness Ride Bike Features: Bicycle Wireless Stopwatch, for Smart Cadence Device, Bike Computer Counter Tracker, Fitness Riding Gadget Dimension: app.4x3cm/1.57x1.18in Color: Red, Blue (optional) Quantity: 1 Pc Note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package includes: 1 Pc x Bicycle Wireless Stopwatch