Bike Horn, 100db USB Rechargble Cycling Alarm Loud Electronic Bike Horn Bike Loud Bike Horn with 4 Sound Mode for Bike Installation

Four kinds of sounds are ed by one button, metal s, whistle horns, tram s, vibrating s. Add multi-function button group on the back to achieve volume adjustment and function volume 110-120dB. The structure upgrade sound is more prominent and the more prominent physical communication structure makes the spker sound more stable and wider. Ftures: 1. Four kinds of sounds are ed by one button, metal s, whistle horns, tram s, vibrating s. 2. Add multi-function button group on the back to achieve volume adjustment and function volume 110-120dB. 3. The structure upgrade sound is more prominent and the more prominent physical communication structure makes the spker sound more stable and wider. 4. The split type controller is separated from the spker and installed to the thumb of the handle to facilitate pressing and ing. 5. Compact design, the size of the watch can be concled inside the handlebar without affecting the brakes of the handlebars, shifting or other brackets. 6. USB rechargble  battery, built-in 280mAh li battery. 7. sled design without fr of stormy all three outdoor design, to meet the daily harsh environment. 8. It can be fixed on the handlebar in 2 seconds, the rubber is adjusted in two steps, and the rubber is adjusted. It is suitable for all kinds of bike installation. Specification: Battery type: 702025PL Battery Weight: about 6.3g Gross Weight: about 77.8g Net Weight: about 48g Size: about 12.3 x 7.6 x 4cm/4.8 x 3 x 1.6in Material: ABS Input: 5V 250mAh Sound: 110-120db Sound Mode: 4 Package List: 1 x Control + Spker 1 x Strap 1 x Charging Cable 1 x Manual