The Portwest PW45 is a fully-functioning electronic protector that automatically compresses harmful impulses and continuous noises to a safe hearing range below 85dB while still allowing normal sounds to be heard without clipping or cutting.
Enhances low level sounds to allow better hearing.
Fabric: ABS, Polystyrene.
Built-in volume controls. Easy access battery compartments hold 2 AA batteries each for long lasting use.
Batteries are included.