AxcessAbles ODM-3 Microphone for DSLR (mic+cable for DSLR) Compatible with Canon, Nikon, Sony Transducher: Electret condenser Polar Pattern: Omni-directional Power: Receives plug-in power from the camera Frequency Range: 35Hz~20KHz Sensitivity: -30dB +/- 3dB / 0dB=1V/Pa, 1kHz