XM-W4 Pro UHF Wireless Microphone System with Lavalier for Nikon D300， D300s， D500， D3200， D3300， D600， D610， D700， D750， D800， D800e， D810， D810A， D5100， D5200， D5300， D5500， D7000， D7100， D7200 DSLR<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"> Transducer type: Condenser (unidirectional) </span></li><li><span class="a-list-item"> Frequency response: 35 Hz - 20，000 Hz </span></li><li><span class="a-list-item"> Nominal / Load impedance: 200 Ohm or less </span></li><li><span class="a-list-item"> Sensitivity (Short) Long: -40 dB/ +/- 1dB / 0dB = 1V/Pa，1kHz </span></li><li><span class="a-list-item"> Signal Noise: 75 dB or more </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51gies8WfvL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31vYpn095wL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41Q1j0bx8dL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51zVP3Ka6VL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41IVmZn4lKL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41oHjq9ewPL.jpg" noproxy>