Communication & Safety : With a high-decibel electric horn and 400 lumens LED lights, you'll be both seen and heard on the road. Stay safe and alert others of your presence during night rides. Power Bank & Ultra-Stable Phone Holder : Keep your devices charged using the integrated power bank. The ultra-stable mobile phone holder fits most smartphones securely, allowing for hands-free navigation. Rechargeable & Waterproof : Recharge the built-in battery via USB, ensuring your light stays bright. The waterproof design protects your phone and the device itself from water and dust. 4-in-1 Design & Easy Installation : This multifunctional bicycle light includes a light, phone holder, power bank, and horn. Install easily without tools on handlebars of various sizes. Versatile & Reliable : Suitable for use on motorcycles, mountain bikes, e-bikes, and scooters. The blue color adds a stylish touch to your vehicle while enhancing safety. Enhance your cycling experience with our Electric Horn and Rechargeable Battery Multi-Function Bicycle Light. This blue device combines safety and functionality by integrating a powerful LED light, electric horn, power bank, and mobile phone holder. Charge your phone on the go and enjoy hands-free navigation thanks to the ultra-stable phone holder. Easy installation and a waterproof design make it a reliable choice for various types of bikes, from scooters to mountain bikes.