Solar-Powered Wireless Bike Computer - Waterproof Speedometer & Odometer with LCD Backlight, Auto Wake-Up, Multi-Function for All Bikes, Including E-Bikes

Solar-Powered Wireless Bike Computer - Waterproof Speedometer & Odometer with LCD Backlight, Auto Wake-Up, Multi-Function for All Bikes, Including E-Bikes • 2022 NEW SOLAR DESIGN - The bike speedometer features a solar panel that charges in sunlight or light, ensuring continuous power while two built-in batteries meet regular electricity needs. • MULTI-FUNCTIONAL CAPABILITIES - With 22 built-in functions, this bike speedometer accurately tracks speed, distance, riding time, and calories, catering to the needs of serious cyclists and fitness enthusiasts. • AUTO SLEEP AND WAKE FUNCTION - The wireless bike speedometer enters standby mode after 300 seconds of inactivity, waking up with any movement or button press, ensuring efficient power usage. • WIRELESS AND WATERPROOF - The bike mile tracker boasts a wireless and waterproof design for easy installation and durability, eliminating the hassle of wiring and ensuring reliability in rainy conditions. • DAY AND NIGHT BACKLIGHT - The speedometer features a backlight and large LCD display for visibility in low light, automatically activating for 4 seconds from 5 PM to 7 AM, with an option to keep it on.