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EE1611 Electronic hearing protector

Name:  Electronic hearing protector

Model: EE1611

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
* 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 cellphone

* Powered by 4x 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