Bicycle Electronic Horn Bicycle Accessories Bike Car if you could simply control the car/motorcycle horn on the bike If there is way to tweet careless drivers and people during hours! The unique car power Bike Horn 4.0 is the loudest bicycle horn, but also your safest choice! It provides a familiar horn for motorists and pedestrians with a penetration rate of 130 dB! The horn three times, making a real road car siren! Is yelling in the city really your choice? It's useless! 5 different sound choices make your riding fun! rain? no problem! We have created this weather resistance for you! receiving feedback from cyclists on our previous bicycle horns, we decided to work hard to the perfect design with the new style, and reduce the weight by more than half while maintaining the sound of the car horn! The new Bike Horn is, but its lightweight, high- engineering will never affect your efficiency, and the 280 mAh battery will fully charge you during the journey! You can rely on its improvements to you to arrive in during all peak hours. Material: PC+ Size: 4X3.5cm Volume: 130db Waterproof: life Product packaging: 1x car