Product S/N:120308221
Spec:sound pickup
Product Memo:Ultra-small acoustic,Prison dedicated
Product Class:99.CCTV Accessories
¡ì hi-fi soundtrack voice monitor head
¡ì Built-in AGC gain audio circuit
¡ì imported ICs, coupling capacitance
¡ì 2mm pinhole design
¡ì Japan's imports of gold-plated capacitor microphone
¡ì Dynamic closed-loop noise reduction circuit
10 to 150 m2
Impedance 600 ohms
Frequency 20 ~ 20Khz
Power 9 ~ 12VDC
Size 62 * 30 * 22mm
For Kang, Dahua DVR device