FEATURES
- 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
Factory Warranty
