Description
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-Single knob controls on/off & volume
-Increases normal hearing up to 4x
-Air Flow Control™ technology protects ears from sounds above 82db
-Padded headband is adjustable for a comfortable fit
-4-hour automatic shut off
-Includes audio jack & input cord for MP3 players, smartphones & scanner radios
-Uses (2) AAA batteries
-NRR 30
