SPECIFICATIONS

Comparison of Headset Effectiveness
Frequency	Typical ANR Headset	Halo Headset®
100Hz	20 dB	30 dB
125Hz	20 dB	30 dB
250Hz	28 dB	32 dB
500Hz	25 dB	35 dB
1KHz	31 dB	35 dB
2KHz	28 dB	38 dB
4KHz	42 dB	42 dB
Click to enlarge.

Noise Protection:

• Type: Passive noise protection headset
• Noise exclusion method: Efficient foam ear insert

Speakers:

• Metal diaphragm with nickel plated steel enclosures.
• Frequency response: 70 14K Hz
• Max SPL output : 128dB SPL in 2cc coupler

Microphone:

• Noise Canceling microphone with flex goose-neck style boom
• The best bidirectional noise canceling microphone you can find anywhere
• Sensitivity impedance of 1-2 kHz

Microphone Boom:

• Lightweight, fully adjustable to allow precise positioning of the microphone for your needs
• Adjustable headband allows the headset to be worn behind the head, over the head, or on the shoulders.

Ear Tips:

• Replaceable isolation foam ear inserts.
• Washable foam material allows the eat tips to be reused many time.