DC 6V-12V 10mA Audio Micro Subtle Sound Monitor Monitoring Pick-up Cable Clear Speech Audio Pick-up Surveillance w/Microphone Cable High Sensitivity Sound Pick-Up Device for Monitoring / Security Systems Cable This microphone is used to pick-up sound in a room Use with cameras or AV surveillance systems, as a spy listening bugging recording equipment Built-in amplifier Monitoring coverage: 30~50 square meters Current consumption: 10mA Frequency range: 200~10KHz Frequency response: 2.5dB Output Impedance: 600O Output level: 0~6V Cable length: 30cm Power supply DC 6V~12V (via red cable) Dimensions: 0 in x 0 in x 0 in Weight: 0.81 oz Package list: 1 x Audio Pick-up Surveillance w/Microphone Cable