[High Decibel, 4 Sound Modes]: The bike horn produces a loud 140-decibel sound with four different modes, effectively alerting nearby pedestrians and enhancing rider safety. [Upgrade Design]: This bicycle horn features a sleek, compact design that complements your bike. It is secured with straps for easy installation and removal—no tools required. [Anti-theft Alarm]: Press and hold the left button to activate the alarm mode. If motion or vibration is detected, the horn will emit a loud warning sound to help protect your bike from theft. [USB Rechargeable]: Built-in rechargeable battery allows quick charging via USB. A full charge takes about 20 minutes, providing up to 30–40 days of use, approximately 3,000–4,000 rings, with a standby time of up to 180 days. [Waterproof and Durable]: Rated IP65 for protection against water, dust, and impacts, making it suitable for use in various weather conditions, including rain. Color: Black Material: Plastic Package Contents: 1 x Electric Bike Horn, 1 x USB Cable (other items not included). Note: Slight color variations may occur due to lighting and display differences. Measurement tolerance: ±1–3 cm.