Foto4easy Professional Condenser Interview Microphone Mini Shotgun Uni-directional System Mic for Photography Camera Camcorder 14.17 Inch (Em-320e) This series interviewing professional microphones embodied with advanced controllable circuit and high quality condenser cartridge .this series are characterized to be uni-ulter-directional,high sensibility, and with good frequency response. It is best choice for business like media itterview, conference, speech, stage, filming, television, camera and camcorder, DVD/Skype/MSN/Computer, etc It is the camera Microphone Mic for different brands of camera. Power: using one #5 battery ( Not Included )