Mini Clear Speech Audio Pick-up Device Waterproof Surveillance Microphone Sound Monitor for Security Cameras SAH-21544

Product Features: : This microphone is used to pick-up sound in a room Use with cameras or AV surveillance systems, as a spy listening bugging equipment Built-in amplifier and noise reduction circuit Impedance is adjustable, adjust the plate at the bottom Clockwise to enhance voice 3 wires: The Red wire for power +/ Black wire for power - The white wire for audio Made of ABS enhanced material Monitoring coverage: 10~150 square meters (Adjustable) Output Impedance: 600 Ohm Frequency range: 200~20 KHz Power supply DC 9V~12V (via red cable) Cable length: approx. 12cm Size (L x W x T): 62 x 30 x 24 mm Net Weight: 15g Color: White Product Specifications:: Package Contents:: * 1 x Audio Pick-up Device