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. SNR 30dB
  • Model: 659862
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