HF-18A is our company'''' s latest product. Making use of Dolby dynamic noise reduction technology, digital audio processing
noise reduction integrated circuit, imported audio amplifier and automatic gain control circuit, this sound pick-up applies to
bank, jail, interrogation room, court, examination room, mall and other places,It can filter noises effectively from the surroundings
and noises caused by circuit, and then makes the voice sound clearer, lounder and mor vivid. Adding sensitivity regulator,
clockwise movement is to turn up the sound,the sound pick-up becomes more flexible and wider for using. It is the perfect
product to be used together with closed circuit television, digital video record audio-visual video system equipment, safety and
protection system. It can make audio-visual synchronal by using together with camera.
(Enclose: it is ideal to use one core with shielded holding wire)