Panasonic HDC-SD90 Camcorder External Microphone Vidpro XM-L Wired Lavalier microphone - 20' Audio Cable - Transducer type: Electret Condenser<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> Vidpro XM-L Wired Lavalier microphone - 20' Audio Cable </span></li><li><span class="a-list-item"> Transducer type: Electret Condenser </span></li><li><span class="a-list-item"> Output Connection: 3.5mm (1/8 inch) 4-Pole Mini-plug - Polar Pattern: Omni-directional </span></li><li><span class="a-list-item"> Frequency Range: 65Hz – 18KHz - Signal/Noise: 74dB SPL </span></li><li><span class="a-list-item"> Sensitivity -30dB +/- 3dB / 0dB = 1V/Pa， 1kHz </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41a2KDBN14L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31%2BUEbNA7mL.jpg" noproxy>