Sony ECM-HGZ1 Shotgun Microphone for DCR-PC55, DCR-DVD305, DVD 405, DVD 505, HDR-HC1, HC5, HDR-UX1, UX5, DCR-SR100 & SR200 Camcorders Shotgun Zoom Microphone For Compatible Handycam Camcorders Synchronizes The Microphone's Pickup Pattern With The Camcorder's Zoom Captures A Super Cardioid Pattern In Telephoto &amp; A Cardioid Pattern In Wide-Angle Powered By Camcorder-No Need For A Separate Battery Works With A Handycam Camcorders Active Interface Shoe Shotgun microphone for compatible Handycam camcorders Synchronizes the microphone's pickup pattern with the camcorder's zoom Captures a super cardioid pattern in telephoto and a cardioid pattern in wide-angle Includes three setting positions for use in a variety of video shooting situations Powered by camcorder; no need for a separate battery