Safety First: This loud volume and mini size electric bike horn reaches 120 dB, providing sufficient sound to alert others, including vehicle occupants, of your presence. Ideal bicycle accessory for riders of all ages. Environment-friendly: Powered by a rechargeable battery instead of disposable batteries. Offers up to 2000 uses on a single full charge, lasting 20–30 days under normal usage. Durable with full protection: Features IP4 level waterproofing, dust resistance, and shatter-resistant construction. Suitable for various outdoor cycling conditions. Easy to install and quick release: Securely attaches using stretchable straps with no tools required. Can be mounted or removed from handlebars in under 20 seconds. Anti-theft alarm: Press and hold the left button to activate early warning mode. If motion or vibration is detected, the horn emits a loud alarm to help protect your bicycle. Specifications: Product Name: Bicycle Electric Horn Material: ABS Size: 6.5 x 3.5 cm Package Included: 1 x Bicycle Electric Horn Notes: 1. Due to differences in monitors and lighting, the actual item color may vary slightly from images shown. 2. Please allow 0.1–2 cm variation due to manual measurement.