Buy on Amazon : br br Nikon D800 Digital Camera External Microphone Vidpro XM-L Wired Lavalier microphone - 20' Audio br br Vidpro XM-L Wired Lavalier microphone - 20 Audio Cable br Transducer type Electret Condenser br Output Connection 35mm 18 inch 4-Pole Mini-plug - Polar Pattern Omni-directional br Frequency Range 65Hz - 18KHz - SignalNoise 74dB SPL br Sensitivity -30dB - 3dB 0dB 1VPa 1kHz