XM-L Wired Lavalier External microphone With 20' Audio Cable for Sony Alpha SLT-A33, A35, A55, A58, A65, A7, A7R, A77, A77II, A99, A3000, A5000, A6000, DSLR330L, NEX-3N, NEX-6, NEX-7K, NEX-F3 Digital SLR Cameras XM-L Wired Lavalier microphone - 20' Audio Cable Transducer type: Electret Condenser Output Connection: 3.5mm (1/8 inch) 4-Pole Mini-plug - Polar Pattern: Omni-directional Frequency Range: 65Hz - 18KHz - Signal/Noise: 74dB SPL Sensitivity -30dB +/- 3dB / 0dB = 1V/Pa, 1kHz