1. Versatile, including all the important features of novices and professionals. 2. Easy to read, large four-line backlit LCD display. 3. With touch buttons for easy control. 4. With mounting accessories for secure mounting. 5. Easy to install, no tools required. 6. Powered by 2 * CR2032 battery (not include). 7. Durable and waterproof, suitable for all conditions. 8. The ideal companion for cycling.