Elevate your cycling experience to new heights with the Bike Computer powered by solar energy. This cutting-edge cycling companion boasts a wireless and waterproof design, ensuring seamless performance in all conditions. The LCD backlight and automatic wake-up feature provide effortless readability, while the multitude of functions cater to every rider's needs. Embrace the future of cycling technology and enhance your journeys with this advanced and eco-friendly bicycle speedometer and odometer. 【2023 NEW DESIGN - SOLAR ENERGY】:With solar panel,speedometer for bike mph can automatically charge in the sunshine or light, provide extra power to the cycling computer while built-in 2 batteries to keep your ordinary electricity need.Environmental protection, Extend battery service life and Save your money. When mounting with the battery of the sensor, please pay attention to points of the power connection.( press the iron piece to make the battery and equipment fully contact) 【MULTI FUCTIONS AND WIDE APPLICABLE】:Built-in 22 functions, speedometer for bike works well to measure speed,distance,riding time calorie counter and etc which what any serious bicyclist or fitness fanatic needs.Small size ,lightweight and wireless design make the bicycle computer wireless suitable for most types of bicycles(may not suit for some type with large spokes) 【AUTO SLEEP & WAKE UP FUNCTION】:After no signal inputs of 300 seconds, the screen of bike speedometer wireless will go into a standby sleep mode with LCD displays. When you shake the bike computer or any signal is inputted or any button is pressed,this cycle computer will automatically wake up 【WIRELESS & WATERPROOF DESIGN】:Wireless and Waterproof Design makes bike mile tracker more convenient and durable.Never worried about the complex in install the wires on your handlebars,No need to worry about rain.Simple installation that only takes a few minutes. Easy to navigate interface with only two buttons to access all measurements of the cycling computer waterproof.JUST ENJOYING YOUR RIDING 【DAY & NIGHT BACKLIGHT】:Speedometer for bike provides backlight and large LCD display for easy viewing during dark hours.The backlight will automatically turn on for 4 seconds per time between 17:00 and 07:00,press both button to keep the light on. Guarantee: You could return with any reason during the first 30 days. Your satisfaction would be our priority. Any problem please feel free to conatct us