Features1Intelligent accelerometer accurately warns other road users by enhancing the light. 2Three adjustment modes, the switch presses the button, long press can be turned on or off, quickly press twice can change to flashing mode. 3The detachable mounting bracket can rotate 360 degrees and easy to use in a bicycle bag or backpack. 4Good LED light effect, has bright light, the warning effect. 5Small in size and light in weight, suitable for use when riding and convenient for outdoor warning.SpecificationItem Type: Cycling LightMode: 3 modes (standard, high, overspeed)Charging Time: About 2 HoursCharging: USB ChargingProtection Level: IPX8Material: ABSOptional Color: Red shell red light / white shell red lightNet Weight: About 31.5gInstallation Accessories: 12-32mm TubeApplication: Bicycle, mountain bike, road bikeSwitch Press Button:Long press to turn on or offShort press to switch between the three modesPress twice quickly to change to flashing modePackage List1 x Bicycle Taillight1 x Mounting Bracket1 x USB Line