1st Waterproof Wireless Speedometer with 3-Color Backlight

The LCD screen makes it easy to watch and go\nWith the removable head unit, you can quickly and easily mount and dismount the bike speedometer\nACCURATE WITHOUT DELAY --- Using a premium chip, the bike computer can wirelessly capture real-time data\nIt can help you plan and analyze your cycling training\nWIRELESS WATERPROOF --- Easy installation that only takes a few minutes for the wireless bike speedometer without having to install complicated cables\nThanks to its water resistance, it can be used on rainy days\nWipe immediately after use\nAUTO ON / OFF BACKLIGHT amplifier;\n3 COLORS --- The bike speedometer has 3 backlight colors: green/blue/red\nYou can adjust the backlight permanently when you need to ride at night\nIf no signal is input after 5 minutes, the screen will automatically turn off to save power\nWhen you move or press any button, the computer will turn on automatically