This waterproof bicycle light and bicycle speedometer comes with a rechargeable USB front bicycle light, you only need a USB cable and charging power source (computer, laptop or mobile phone charger), the internal 1500mAh lithium-ion battery can be recharged for several Hundred times it is a cost-effective and environmentally friendly alternative to disposable batteries. The bicycle odometer computer has 5 modes that can be changed - Multipurpose, DST, MXS, Auto Video Audio, Auto Navigation. Adjustable for precise measurements, it displays total distance, top speed, average speed, ride time and one-way logs for outdoor rides and training sessions. The bright screen green backlit LCD display with numbers ensures easy reading. Touch MODE or SET to wake up the backlit screen during the day and night. This bike light can be used as a regular flashlight for hiking, camping, walking, home or office emergency power outages, nighttime family/kids activities, etc. Road bikes, mountain bikes, folding bikes and other common bikes are compatible with this bike Package Contents: One bike light Note: 1. Please allow some errors due to manual measurement. Please make sure you don't mind before bidding. 2. Due to different monitors, colors may vary, please understand. Hello, please pay attention to your shipping address when purchasing products. If your delivery information (such as name, street, house number, doorbell/box without name, etc.) is incorrect, the order will not be delivered correctly. )