1. Professional elimination of environmental echoes and noise Integrated DSP dual microphone array pickup unit.

2. It has digital EQ, automatic gain AGC, and enhances the high-definition capability of the pickup.

3. Enable adaptive noise reduction function based on environmental monitoring noise (12dB @ steady-state noise).

4. Effectively eliminate strong turbid echoes in open rooms（ 12dB@64ms ）.

5. Integrate two complementary microphones into the microphone head Comprehensive sound collection Fully enhance the clarity of the sound quality of the microphone.

6. It adopts 32k/24bit dual channel audio and can be pre programmed.

7. Metal dual microphone head with perforated design appearance High strength aluminum alloy integration technology Beautiful and elegant.

8. The all metal anti riot structure is resistant to external electromagnetic interference and has advantages such as oxidation resistance and easy installation.

9. The microphone is equipped with lightning protection, power polarity reversal protection, and power protection modules.

10. Ultra long line audio transmission technology, using RVVP3 * 0.5 cable to transmit 3 kilometers without distortion.

11. A synchronous audio and video recording project suitable for government, public security, judiciary, education and other environments

12. Adopt the EU Environmental ROHS Directive 2002/95/EC for construction specifications.

13. Passed the EU CE standard and the highest inspection synchronous recording and video system construction specifications.

14. Tested according to relevant standards of the Federal Communications Commission (FCC) and corresponding system construction specifications.

15. Certified according to the international quality management system standard ISO9001.

Monitoring area 5-100 square meters (continuously adjustable)

360 ° omnidirectional pickup direction

Two microphones with complementary microphone heads

Frequency response characteristics: 100Hz~16kHz（ 1kHz@94dBSPL ）

Sensitivity ECM array 38 ± 2dB

System Platform GMS1258DSP Processor

Sampling rate 32k/24bit dual channel audio

Audio algorithm dual microphone noise reduction processing software

Noise reduction capability 12dB (steady-state noise)

Mixing Elimination 12dB@64ms Mixing

Pre selected functions include digital EQ, automatic gain AGC, and mixing cancellation

Output level 1Vp-p（ 1kHz@94dBSPL ）

Output impedance 600 ohms unbalanced

Power characteristic protection circuit polarity protection, misconnection protection, electrostatic protection

Connection method: Soft rubber three core wire: power supply (red), public ground (black), audio high-definition (yellow)

Appearance size 50 * 26mm (diameter * height)

Weight 75g

Physical characteristics Working environment temperature -25 ℃~55 ℃

Electromagnetic compatibility complies with GB9254-2008

The shell material is aluminum alloy, and the anti riot structure has a fixed base buckle at the bottom