الوصف

1.volume and less weight communication equipment with high-performance headphones and microphone which is used in a dangerous environment. 2.your ears completely open, so that you could hear the tiny voice around you when you are communicating with others; it is different from the traditional headphone. 3. The voice information is collected by a high sensitive oscillationpick-up which is on the head, and sent to the skull's vocal cord, the vocal cord vibration transforms the voice information into sound signal. 4.will not affect other head protection equipments, like the helmet and respiratory mask, ***** 5.an ideal communication equipment in specific tasks in the field of military, law enforcement, fire fighting, rescue, heavy industry and so on. It is easy to operate.