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 help protect your bike. USB Rechargeable: Built-in rechargeable battery for convenient use. Fully charged in 20 minutes, the electric bike horn can last for 30-40 days, produce 3000-4000 rings, and remain in standby for up to 180 days. Waterproof and Durable: IP65 rated for waterproof, dustproof, and shatterproof performance, ensuring reliable operation in rainy conditions and outdoor environments. Specifications: Color: Black Material: Plastic Package Contents: 1 x Electric Bike Horn 1 x USB Cable Note: Lighting and monitor settings may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.