Description: Charging design: USB charging modes, automatically disconnect the power when fully charged, and the charging port has a rubber protective cover To prevent dust and rain from entering, the battery can last for a long time Easy disassembly: It uses rubber straps, without tools to assist in the installation, and it is easily installed on the bicycle manually. The installation is aligned with the card slot and slides in. Feeling stuck indicates that the installation is successful. When the switch is pressed, the switch is drawn out and the disassembly can be successful. Lighting design: There are three lighting modes, namely strong light, middle, flashing can be switched freely. Using XPG high-brightness lamp beads, the light range is wide, the light range is long. Sound design: 5 sound modes can be selected, long press for 5 seconds to switch the sound, 120dB horn sound can be used as a reminder or warning function, the sound is loud in decibels and the horn can be sounded from a long distance. Able to ensure safe riding. Other designs: The product has waterproof function and can be used in rainy days. Specification: Material: ABS Size: approx. 10.7x5cm/4.2x2inch Package Includes: 1 Piece Bicycle Headlight 1 Piece USB Charging Cable