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EE1621 Low profile electronic earmuff

Name: Low profile electronic earmuff 

Model: EE1621

Feature:
* NRR21dB
* Two microphones
* Cut off immediately when sound over 82dB
* 4-5 times sound amplification
* Independent electronic circuit on both cups for better performance
* Soft padded headband
* Low profile design, light weight

* Dual knobs for on/off and volume
* Adjustable plastic headband to fits all sizes
* 3.5mm input jack one side to connect walkie-talkie or cell phone

* Powered by 4 x 1.5v AAA batteries

Attenuation Data:

Frequency(Hz)

125

250

500

1000

2000

3150

4000

6300

8000

NRR

Mean Attenuation(dB)

1.0

15.5

22.2

24.6

33.7

32.4

29

39

39.9

 

Standard Deviation(dB)

4.3

2.5

2.6

2.6

..7

2.9

1.9

3.6

3.3

21

 

 

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