Features: High Decibel, 4 Sound Modes: The bike horn emits a loud sound reaching up to 140 decibels and offers four sound modes, ensuring pedestrians are alerted to your presence for safety during riding. Upgrade Design: Stylish and compact appearance complements your bike. It's fixed by straps, making it easy to install and disassemble without requiring tools. Anti-theft Alarm: Long press the left button to activate the early warning state. If shaking or vibration is detected afterward, the horn emits a loud alarm to protect your bike's safety. USB Rechargeable: Built-in USB rechargeable battery for easy use. Fully charged in 20 minutes, the electric bike horn can be used for 30-40 days, ring 3000-4000 times, and standby for 180 days. Waterproof and Durable: IP65 waterproof, dustproof, and shatterproof, ensuring usability in rainy conditions and meeting outdoor riding needs. Specifications: Colour: Black Material: Plastic Package Contents: 1 x Electric Bike Horn 1 x USB Cable Note: Light and different displays may cause the color of the item in the picture to differ slightly from the real thing. The measurement allowed error is +/- 1-3cm.