EASY INSTALL REMOVE: The bike lights is no tools required, easy to attach and remove, whether walking your dog, cycling , skate boarding, hiking, motorcycle or Anti-theft. Dont worry about they are stolen while you shop.These bicycle lights are easy to use.Include bike lights front and back.USB RECHARGEABLE BATTERY: USB rechargeable front and back lights, built in 500 mAh rechargeable lithium battery of led bike lights.Both of the led bike lights have built-in rechargeable battery, just need the USB cable to charging. Both bicycle lights have an indicator for charging status(Charging: flashing yellow; Fully charged: Solid yellow).Fully recharge in 1 hours when connected to any USB port.SIX LIGHT MODE: Your new bike light set features extremely bright LED which illuminates the entire road. The bike lights front and back features an one-touch switch with SIX different lighting modes depending on your preference. The front bike light and rear bike light both Include High/Medium/Low Brightness/Fast/Medium/Slow Flashing.IPX4 WATERPROOF: Water spray from any direction will not enter the cycle lights even in big raining.Highly airtight construction - strong and waterproof. These bike lights are water resistant to any weather, and extremely durable. It also can be mountain bike lights.WIDELY USED: This bike lights set is versatile enough for cycling, hiking, camping, or any outdoor activity and can be used as emergency flashlight. Its a good mountain bike lights for cycling at night or in places where visibility and safety are concern. So, just start your next adventure with us.