Engineered for versatile positioning and extremely flexible performance in boardroom, school, government, house-of-worship and other installed applications, the U857AL features a small-diameter gooseneck with virtually no memory. Its ultra-flexible, robust design permits easy adjustment into desired shape while resisting inadvertent repositioning. This cardioid condenser gooseneck microphone direct mounts to any 5/8"-27 stand; it is 16.58" long. Equipped with UniGuard innovations that offer unsurpassed immunity from radio frequency interference, the U857AL accepts interchangeable elements, available in cardioid, hypercardioid, omnidirectional and UniLine line cardioid polar patterns. The battery- or phantom-powered microphone also offers an 80 Hz low-cut UniSteep filter that reduces pickup of low-frequency ambient noise. Features: Designed for high-quality sound reinforcement, professional recording and broadcasting Superior off-axis rejection for maximum gain before feedback UniGuard RFI-shielding technology offers outstanding rejection of radio frequency interference (RFI) Easy-to-adjust, rugged, small-diameter, alternating gooseneck with virtually no memory permits quick positioning into desired shape UniSteep filter provides a steep low-frequency attenuation to improve sound pickup without affecting voice quality Accepts interchangeable elements to permit angle of acceptance from 90 to 360 Two-stage foam windscreen yields dramatically improved resistance to P-pops and other breath blasts Direct mounts to any 5/8"-27 stand, or to included threaded mounting flange Operates on battery or phantom power