XUEMEI Powerful FeaturesWant to know how fast you are? It's called a cycling computer because it can do so many things: calories burned, distance, average speed, miles traveled, and more. The bicycle odometer has 2 buttons, "Mode" on the right, which means finding the desired mode (or parameter), and "Settings" on the left, which means confirming the mode. As a full-featured logging tool, the oversized format of the current speed numbers sets the odometer apart from the competition.Touchable BacklightThe bicycle speedometer has a light screen in the dark, so you can read the bicycle computer clearly in the dark. Manually touch the Mode key and the Set key at the same time. You can keep the backlight on all the time. Touch again at the same time to turn off this mode. You can read data more easily and clearly, day or night. The glare-free backlit screen uses premium technology for high visibility in sunlight.Excellent Product PerformanceBike Speedometer Odometer has 19 functions to provide you with a better riding experience. This cycling computer will automatically go into sleep mode after 5 minutes of inactivity and will display your last ride data when you press any button or simply ride. IP54 waterproof protection, so that the bicycle computer can work normally on rainy days. (Do not put it directly into the water).Installation RequirementsTo install the bicycle odometer, here are the requirements. 1. The distance between the sensor and the host is less than 50cm, the host can receive the signal and work, the closer the better. (The computer sometimes displays fluctuating data with a distance of more than 50cm, which does not affect all data) 2. The distance between the magnet and the sensor should be about 5mm, the closer the better. 3. The magnet faces the back of the sensor battery.Expansion BracketOur cycling computers come with universal mounts and extension mounts. Extension brackets are only available for 22.2-31.8 handlebar diameters. The kickstand expands your field of vision while you ride, and the bike speedometer reduces the need to look down at the monitor, which reduces stress on my shoulders and neck while making my ride more comfortable. Putting the bike speedometer on the stand also makes your bike look cooler and more professional while riding.Product does not include additional batteries.