Loudspeaker Big Decibel Bicycle Password Type Anti-Theft Alarm

Product Details
Material ABS
Features: high decibel, simple operation, one-touch touch, strong waterproof
Size: 44mm*45mm*51mm
Recommended reason
●Small size
●Beautiful appearance, waterproof design for life
●Easy to install, can be installed on any type of bicycle
●Press and hold the button to make a high-decibel sound

Packing list: alarm x1