Features:
Portable and lightweight.
Can still work even water in.
High volume, loud and clearly, easy to be noticed anywhere you are.
Dual hole design can bring you best performance.
Specifications:
Material: Aviation Aluminum Alloy
Product size: approx. 56*15mm/2.2*0.59''
Thickness: approx. 8mm/0.31''
Net weight: approx.10g