HD pinhole pickups NIS-040V

1, NIS-040VN series designed for the prison industry interrogation system synchronous recording and design, the original imported kit assembly.

2, the use of advanced resin material "honeycomb set sound" design, completely eliminate "hiss" electronic noise.

3, Russia BOURNS gold-plated capacitive microphone, 5 ~ 40 square within the high fidelity, high sensitivity, high bandwidth, low noise.

4、The pickup adopts 0.8mm pinhole design, its internal resonance cavity is precisely calculated, the radio is clearer.

5、Unique Dolby omnidirectional logic surround sound standard design, built-in high-speed voice DSP processing unit, two-level dynamic noise reduction processing.

6, built-in AGC noise reduction signal processing circuit, concave cavity to effectively reduce the serious echoes in open rooms.

7, built-in ALC level control circuit, automatic adjustment of voice high and low intensity and instantaneous voltage and current impact.

8, pickup built-in lightning strike protection, power supply polarity reversal protection and power protection module.

9, ultra-long audio signal transmission technology, using RVVP2 × 0.5 mm2 shielded cable transmission 3 km without distortion.

10, -25 ℃ ~ 70 ℃ super ambient temperature work to ensure that the back end of high-quality recording effects.

11, integrated professional preamplified audio circuit, direct drive active speakers, hard disk recorders, headphones, etc.

12, suitable for prisons, detention centers, detention centers, police stations and other small rooms hidden installation of synchronized monitoring and recording.

13, through the EU environmental protection ROHS Directive 2002/95/EC construction specifications.

14, through the EU CE standard and the highest prosecution synchronous recording system construction specifications.

15, through the United States Federal Communications Commission that is the FCC related standards testing and the corresponding system construction specifications.

16、Won the patent certificate of the State Intellectual Property Office of the People's Republic of China.