Category:Electric Bike Horn / Bell; What's in the box:1 x USB Cable,1 Bike Horn,1 Package Box,1 Clip,1 Operation Manual; Activity:Mountain Bike MTB,Folding Bike,Road Bike; Decibel Level:120; Power Supply:Built-in power supply; Material:ABS,Silicon Rubber; Dimension:6.64.9; Function:Dustproof,USB Rechargeable,3 Sound Modes,Mini,Safety,Lightweight,Alarm,Waterproof; Appearance:Matte; Waterproof Level:IP65; Shipping Weight:0.082; Net Weight:0.000; Listing Date:09/29/2018; Production mode:External produce; Special selected products:new,COD