The area of Monitoring is about 10~150 square meter.
Output impeance: 600 Ohm.
Frequency response: 100~10KHZ.
Operating voltage: 9~14V DC.
Preamplifier used to increase a microphone's low output voltage to a stronger usable level.
Collect audio evidence as important as capturing video evidence, this preamp microphone kit is a perfect addition to any video security camera system.
This high gain mini preamp and microphone is the best for CCTV professionals, with Preamplifier IC built on board, it increase a microphone's low output voltage to a stronger, more usable level, it features low noise, high gain and auto level adjustment on-board preamp circuit.
This mini-size microphone is only 5mm in diameter, easily hidden