Solid state circuitry allows normal speech and sounds to be heard but automatically deadens noise above 85dB. On/Off switch with adjustable volume control. Auto-adjust head band. Requires 2 x AA batteries, providing approx 200hrs of use. Conforms to EN352-1. Protection levels: H=30 M=28 L=22 SNR=30dB.
659862
Data sheet
Feature 1
Deadens noise above 85dB
Feature 2
Allows speech to be heard
Feature 3
Solid state electronic circuitry
Feature 4
Rotary on/off adjustable volume control
Feature 5
Requires 2 x AA batteries
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