HD-25V Embedded waterproof (storm) type pickups

1, HD-25V series is designed for prison interrogation system, safe city and other industries synchronous monitoring and recording, the original imported kit assembly.

2, using metal streamline structure design, high strength aluminum alloy spacing technology to reduce unnecessary air vibration.

3, the use of D.A.D.S (double-layer air cushion system) structure, reproduce the voice stretching freely.

4、Russian BOURNS gold-plated capacitor microphone, 25 square within the high fidelity, high sensitivity, high bandwidth, low noise.

5, to eliminate external electromagnetic interference, with strong adhesion, not easy to fade, not easy to oxidation, hidden installation and other advantages.

6、With high-pass filtering noise reduction circuit, effectively reduce the environment and the circuit of high and low frequency noise.

7、Built-in AGC noise reduction signal processing circuit, effectively prevent voice signal distortion and attenuation.

8、Built-in ALC automatic level control unit, completely eliminate the "hiss" electronic noise.

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

10、Extra-long audio signal transmission technology, using RVVP2×0.5 mm2 shielded cable transmission 3 km without distortion.

11, -25 ℃ ~ 70 ℃ super ambient temperature work to ensure that the back end of high-quality recording effects

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

13, suitable for prison warehouse, drug rehabilitation, correctional institutions, prisons, safe city and other synchronous monitoring and recording.

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

15, through the EU CE standards and the highest prosecution synchronous recording system construction specifications.

16, through the U.S. Federal Communications Commission that is, the FCC related standards testing and the corresponding system construction specifications.