Features: Comprehensive Securitys: Integrates a powerful anti-theft alarm with a loud-bike horns and bell, offering multi-layered protection and versatile sound alerts for enhanced safety. Compact & Portable Design: Its miniature size ensures it's easy to carry and discreetly install on any handlebar, making it an ideal, space-saving accessory for daily commutes or adventurous rides. Loudly & Effective Warnings: Emits a piercing alarm to deter thieves and a clear, attention-grabbing horns sound for traffic, significantly enhancing cycling safety by ensuring you are heard. Versatile Compatibility: Designed with a flexible mounting strap to fit various handlebar sizes, making it perfectly suited for road bikes, mountain bikes, electric bikes, and even scooters for universal application. USB Rechargeable & Sturdy: Features a built-in USB rechargeable batteries and is constructed from sturdy, weather-resistant materials, ensuring long-lasting performance and reliability in various conditions. Notice: *Actual color may be slightly different from the image due to different light effect *Please allow 1-3cm deviation due to manual measurement Description: Battery: 200 mAh capacity Decibel: 120db Material: ABS+silicone button Package List: 1x Universal Rechargeable Bike Horns Alarm