Helicopter Headsets (ENC)Portable ENC Technology Quiets Extremely Noisy HelicoptersThe H10-56HXL is extremely effective at blocking out low-frequency sound associated with helicopters.
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Ground Support Headset
耳机延长线的作用是针对原配的耳机线不满足使用要求，对其插头进行对接延长，主要有直线型和Y型两种延长类型。
