Specification :

It adopts the design of honeycombed sound collection with advanced resin material, completely eliminating electronic noise of h

1.The series of WM-040VN- are specially designed for sync recording of trial system in prison industry, assembled with original imported packages.

2.It adopts the design of honeycombed sound collection with advanced resin material, completely eliminating electronic noise of hiss.

3.BOURNS golden capacitive microphone of Russia keeps Hi-Fi, high sensitivity, high bandwidth and low noise in 5-40 squares.

4.Pickup cartridge uses 0.8mm pinhole design, the internal resonance tune has been accurately calculated, leading to clearer sound.

5.It adopts special and standard design of Dolby full logic with high-speed voice DSP processing unit inside and two-level dynamic noise reduction.

6.It has AGC noise reduction signal processing circuit inside. The concave cavity can reduce serious echo in empty room effectively.

7.It has ALC PWL control circuit inside, automatically adjusting high and low strength of voice and instantaneous voltage and current impact.

8.The pickup cartridge has modules of lightning protection, power polarity reverse protection and power protection inside.

9.It adopts the technology of super audio signal transmission and uses RVVP2× 0.5 mm2 shielded cable which can transmit three kilometers without distortion.

10.Super-ambient temperature ranging from -20° c to 70° c ensures high-quality recording of back end.

11.The integrated, specialized and front audio amplifier drives active speaker, DVR and headphones

etc directly.

12.It can be applied to concealed installation in small rooms including prison, detention center,

detention jail and police station etc for sync monitoring and recording.

13.It agrees with RoHS specifications