Polaroid Pro Video Condenser Shotgun Microphone For The Nikon 1 J1, V1, D40, D40x, D50, D60, D70, D80, D100, D200, D300, D3, D3S, D700, D3000, D3200, D7000, D800, D800E, D4, D5100 Digital SLR Cameras Electret Condenser Technology: Sensitive To Low Volume Sources Slide Shoe Mounting With Wheel Lock &lt;&gt; Lithium Battery Provides Longer Use Cardioid Pickup Pattern Diminishes Sound From Behind User Selectable Pickup Angles Choose Either 90 Degree or 120 Degree Battery Level Monitor &lt;&gt; Windscreen Included; Great Indoors And Out &lt;&gt; Lightweight