High NRR anti-noise hearing protection electronic ear defender

1.Electronic ear defenders protect the ears against noise levels higher than 85dB.

2.Solid state circuitry allows normal speech and sounds to be heard but automatically deadens any noise above 85dB

3.On/Off switch with adjustable volume control.

4.Auto-adjust head band

5.Uses4xAAA batteries (not included)

6.providing approx. 200 hours of use.

7.Color : yellow(transparent) , black(transparent) , red.

8.inner packag:colorful box or double blister