Dear Manager:
  sound pickup PK-AM-AUDIO from China Powerking.

	Product Name:sound pickup PK-AM-AUDIO Product S/N:120309106 Spec:sound pickup Product Memo:AGC Automatic Gain Noise Reduction Product Class:99.CCTV Accessories
Product Description:  the high sensitivity of high-fidelity acoustic ¡ì Built-in AGC gain audio circuit ¡ì Import amplifier ICs, coupling capacitance ¡ì 2mm pinhole design ¡ì Japan's imports of gold-plated capacitor microphone ¡ì Dynamic closed-loop noise reduction circuit 20 to 150 m2 Impedance 600 ohms Frequency of 100 ~ 16Khz Power 9 ~ 12VDC Size 100 * 50mm For Kang, Dahua DVR device

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