Designed for use on flat surfaces, Crown PZM/PCC micsprevent phase interference from surface reflections,allowing a wide, smooth response. Excellent for soundreinforcement, conference tables, interviews and more.Crowns phantom-powered PZM6D has switchabledual frequency response and 15 ft. mini-cable/XLR connector. The plate is detachable, making it flexible for all kinds of uses and extremely portable – slip it in your pocket without the plate and use it on any flat surface for great PZM pickup. The PZM30D (available separately) has a larger detachable plate and XLR output (no cable).