This microphone is used to make sounds in a room
Use with camera or AV surveillance system, as a spy listening bugging tool
Built-in amplifier and noise reduction circuit
Red one for power, white for audio
Monitoring coverage: 10 ~ 100 square meters
Output Obstruction: 600 ohms
Frequency range: 200 ~ 10 kHz
Power supply DC 9V ~ 14V (via red wire)
Wire length: about 32 cm
Size (L x W x T): 39 x 31 x 18 mm
Net weight: 32g