Features: 100% Brand New and High Quality Power source: AG13 battery (not included) LCD display: 3 * 2cm Dimensions: 4.5 * 5.2 * 1.9cm Package size: 17.5 * 10 * 3cm 14 main functions Display: Two-line displays Durable and water resistant for use in all conditions Easy installation, good durability Powered by AG13 battery Easy to read LCD display, ideal companion for your riding Functions: 1. SPD? CURRENT SPEED 2. ODO? ODOMETER (0~99999) 3. DST? TRIP DISTANCE 4. MXS? MAXIMUM SPEED 5. AVS? AVERAGE SPEED 6. TM?? ELAPSED TIME 7. CLK? CLOCK (12H/24H) 8. SCAN ? 9. “+” “?” COMPARATOR 10. SETTING SPEED SCALE (km/h,m/h) 11. SETTING TYRE CIRCUMFERENCE (0mm?9999mm) 12. SETTIN THE LAST VALUE OF ODOMETER / ODO 13. FREEZE FRAME MEMORY 14. AUTO ON / OFF Package Included: 1 * LCD Bicycle Computer  1 * Transmitter Sensor 1 * Magnet 1 * User Manual