The USB rechargeable bicycle bell is designed for adult bikes, mountain bikes, and electric bikes. This bike bell allows performance. Simply attach the bell to your handlebars, and with a , activate the loud horn to alert pedestrians and other cyclists. Features -Note: Suitable for 22.2-31.8mm bicycle handlebars -Bell decibel: 110-120db -Battery: Built-in 300mAh lithium battery -Protection level: IPX65 -Charging type: USB - Color: Black -Material:ABS, Polycarbonate - Size: 8.67X4.33X2.21cm/3.41X1.70X0.87in -Adjustable volume: the rechargeable bike horn features adjustable volume settings, allowing you to change the sound level to suit different environments - battery: equipped with a built-in lithium battery, this bike horn allows extended usage time, so you won't have to recharge frequently -Weather resistant: with a great protection rating, this bike horn is designed to withstand various weather conditions, making it ideal for all season use -Easy installation: the bike horn is simple to install and fits a wide range of bicycle types, ensuring a convenient setup process -Stylish and strong: featuring a sleek exterior, this bike horn not only looks stylish but is also built to last, providing both fashion and function Package list: 1 x Bicycle Bell 1 x USB cable 1 x manual