These electronic earmuffs give superb hearing protection that allow you to carry on aconversation or hear warning calls, yet all noise above 85dB are automatically attenuated.

These earmuffs are great for use with power tools, table saws, chainsws, routers, and penumatic air tools, A must for people who are exposed to intermittent dangerous noise levels,

Laboratory tested Nrr 23dB.

LED power indicator.

On/Off Switch with volume control.

Solid-State circuit.

Built-in microphone amplifies low-level sunds.

Attenuates noise over 85 db.

Soft & wide form filled ear cushions.

Comfortable with adjustable headband.

Powered by 2 AA batteries (not included). 

2 AA batteries provide 200+ hours of service.