Qiorange New Waterproof Multifunctional 5 LED 8 Sounds 7 Flash Mode Cycling Bike Bicycle Warning Light Safety Light Electronic Horn Bell Siren Waterproof design, it can be used outdoors in the rain, easy to install, functional and very practical 8 different sounds, you can choose any one of the sounds you like There are two control button on the bottom of the light, the left is a rotary control switch for 8 sounds siren, turn it to choose an electric horn type, a total of eight sound can choose. On the right is a button type switch for 7 flashing mode, press it to choose one flash mode The lights clip to handlebar brackets to get you started. As a result, you have no excuse to go unseen while riding Wire length:22cm/8.7inch; Suitable handlebar diameter:3cm/1.2inch