Product S/N:120308232
Spec:sound pickup
Product Memo:Public places
Product Class:99.CCTV Accessories
¡ìLow-noise processing chips
¡ìSpecial explosion-proof metal
¡ìPower polarity protection circuit
50~100m2 Adjustable
Impedance of 600 ohms
Frequency 200 ~ 10Khz
6 ~ 14VDC power supply
Size 39*31*18mm