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EE6821 Active electronic compact earmuff

Name:  Low set electronic compact earmuff

Model: EE6821

Feature:
* NRR22 dB
* Two microphones
* Cut off or sound compress when sound over 82dB
* Amplification 5-6 times to detect the ambient sounds
* Independent electronic circuit on both cups for better performance
* Low profile design, light weight
* Dual knobs for on/off and volume
* Adjustable POM headband to fits all sizes
* Folded to be a small ball, easy for taking and storage
* Soft padded headband cover provides all day comfort
* External battery compartment, easy to install batteries

* Powered by 4x 1.5v AAA batteries
* Ideal for shooter, hunter and worker involved in noisy surrounding

Attenuation Data:

Frequency(Hz)

125

250

500

1000

2000

3150

4000

6300

8000

NRR

Mean Attenuation(dB)

8

15

29

35

42

41

70

45

61

 

Standard Deviation(dB)

5.9

3.3

8.2

5.8

6.1

6.0

7.4

9.4

7.4

22