Features:Multifunctional， includes all vital functions for novices and pros alike.Easy to read， big four-line backlit LCD display.Durable and waterproof for use in all conditions， can be totally soaked in water.Easy installation， no tools required.Powered by CR2032 battery (Included).Ideal companion for your riding.25 Functions:1. SPD: Current Speed2. ODO: Odometer (0-9999km)3. DST: Trip Distance4. MAX: Maximun Speed5. AVS: Average Speed6. OTM: Totol Trip Time7. TM: Trip Time8. RTM: Riding Trip Time9. CLK: Clock (12h/24h)10. SW: Stop Watch11. Temperature (-10 Degree~ 50 Degree)12. TM UP: Trip Time Up13. TM DN: Trip Time Down14. TRIP UP: Trip Distance Up15. TRIP DN: Trip Distance Down16. + - Comparator17. Maintenance Alert18. Low-Speed Reminder19. Over-Speed Reminder20. Seeting Tyre Circumference21. Seeting The Last Value Of Odometer22. Setting OTM23. Freeze Frame Memory24. Auto ON/OFF25. BacklightSpecifications:Color: BlackBacklight Color: GreenMaterial: PlasticBattery: CR2032 (Included)Dimensions: 5.5cm x 4cm x 1.8cm/2.2" x 1.6" x 0.7" (Approx.)LCD Screen: 3cm x 3.3cm/1.2" x 1.3" (Approx.)Note: After being soaked in water， please wait a moment before pressing any button.Package Includes:1 x LCD Bicycle Computer1 x Sensor Transmitter1 x Magnet4 x Cable Ties1 x User Manual (English)