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The H9990 single-ear, over-the-head style communications headset incorporates a noise-canceling, dynamic microphone that is optimized for extremely noisy environments up to 125 dB. With superlative performance and unsurpassed comfort, the...

The H9990 single-ear, over-the-head style communications headset incorporates a noise-canceling, dynamic microphone that is optimized for extremely noisy environments up to 125 dB. With superlative performance and unsurpassed comfort, the...