Features: Enhancing your cycling performances with this high sensitivity navigation bike computer, featuring dynamic satellite tracking, IPX6 waterproof durability, and a 900mAh battery for 25+ hours of precise route monitoring on any terrain. Automatically syncs ride data via wireless connection, offer customizable setting including time zone adjustment, speed unit switching, and factory resets, with a large screen interfaces for effortless navigation. Ideal for outdoor enthusiasts, competitive cyclists, and daily commuters seeking reliable real time speed, distance, and location tracking during training or ride. Confidently tackle mountain trails, rainy city commutes, while maintaining accurate performances through its weather resistant polycarbonate housing. Streamlines your cycling analytics with automatic sleep mode activation and realtime access to previous ride statistics, eliminating manual setups for seamlessly adventure continuities. Specifications: Component:Plastic Color:Black Size:Approx.55x55x22mm/2.17x2.17x0.86inch Screen size: 2inch LED Battery: 900mAh Battery lifes: 25 hours Charging Time: 2 hours Waterproof: IPX6 Package Includes: 1 Set Waterproof Bike Speedometer note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.