Feature: 1. MULTI-FUNCTIONAL: Equipped with 15 functions including odometer, speedometer, trip distance, average speed, elapsed time, maximum speed, clock, scan, speed scale setting, comparison, auto on/off, last odometer value, memory freeze, and maintenance alert. 2. ACCURATE MEASUREMENTS: Waterproof cycling speedometer measures speed and distance accurately, helping you track biking progress and record precise data for optimizing your cycling routine. 3. USER-FRIENDLY DESIGN: Cycling speedometer features an English interface and a clear LCD screen for easy reading and operation. 4. STABLE WIRED CONNECTION: Wired connection ensures reliable data transmission and consistent measurement accuracy. 5. PORTABLE AND DURABLE: Lightweight, easy to install, and compatible with most bicycles. Constructed from high-quality materials for long-term reliability. Specification: Item Type: Waterproof Speedometer Material: ABS plastic, electronic components Display: LCD display Size: Approx. 51 x 42 x 18 mm / 2 x 1.7 x 0.7 in Power Supply: AG10 button cell x 1 (included) Package List: 1 x Cycling Speedometer 1 x Base Sensor Connection Cable 1 x Magnet 6 x Zip Ties 1 x User Manual