Waterproof Bicycle Horn by USB Charging

$19.90

Waterproof Bicycle Horn by USB Charging

Comes with different volume setting.

Built-in 280mAh lithium battery, equipped with standard USB charging, 1.2 hours can be filled, the charge can be a continuous bell 2000 times, about 20-30 days normal use.
 
It is designed to the mini size of a watch, you can hide it in the handle without affecting the operation of hand brake, shift or other supports.
 
Waterproof, dust-proof and fall-proof, very convenient for your daily use.