Bicycle Charging Horn Super Loud Bells Mountain Bike Electric Bells USB Charge Bells Bicycle Riding Equipment Accessories Electric Bike Horn USB Rechargeable Bicycle Bell Invisible Cycling Alarm Loud Horn Alert Ring For MountainDescription: LOUD AND ATTRACTIVE BELL: This electric bike horn is build in voltage boosting circuit, ringing sound,loud enough to warn people you are coming,keep both safe in crowded. MULTI FUNCTIONAL BIKE BELL: Waterproof,drop resistant and dustproof, Modes Sound (Whistle,Horn sound,Alarm sound) for different situations. PERFECT FIT FOR BICYCLES: Rechargeable Bike Horn can attach to mountain bikes, road bikes, and Scooters which handlebars. EASY TO