Low power consumption Long transmission distance Wide working voltage range Power reverse protection circuit Plug and play Technical Specifications: Working Voltage: DC 6~14V Current consumption: 6mA Frequency range: 100~10000HZ Frequency response: 2.5dB Output impedance: 600 Ohm Output Level: 2~5V upp Package Contents: 1x MINI MIC AUDIO SOUND CCTV MICROPHONE FOR CCD CAMERA KZ-501C