Микрофон за Видеонаблюдение Правоъгълен
Monitor area: 5-80 square meters.
Voltage: linear power supply DC 9- 12V,
Electric current: 20MA, Frequency range:
100HZ-100KHZ, Output impedance: 600ohm
non equilibrium, Connecting mode: red
(power+) black (GND) white (audio+), Apply
to all kind of DVR.