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EE6003 two-way stereo electronic safety earmuffs with input

Name: two-way stereo electronic safety earmuffs with input

Model:EE6003

 

Features:
* Protect hearing with a Noise Reduction Rate of 27 dB
* One on/off volume knob to control both sides
* External battery compartment cover easily slid on/off for replacing batteries
* Powered by 2x 1.5v AA or 2x 1.5v N batteries
* Deep ear cup design with padded ear cushions and soft headband provides all-day comfort wear
* One 3.5mm input jack for external devices such as MP4,Ipod,walkie-talkie to offer HiFi stereo sound  
* Foam filled headband and padded soft ear cushions provides all-day comfort wear
* Adjustable soft headband fits for all sizes

 

Attenuation data:

Frequency(Hz)

125

250

500

1000

2000

3150

4000

6300

8000

NRR

Mean Attenuation(dB)

9.0

19.8

31.0

34.8

36.4

38.3

39.1

40.9

37.3

 

Standard Deviation(dB)

2.9

5.4

5.4

4.8

..4.8

3.7

3.0

3.7

3.7

27