Koolertron New 10.9 inch Professional Interview Uni-Directional System 320 Microphone for MediaInterview,Conference,Camera,etc This professional microphone embodied with advanced controllable circuit and high quality condenser cartridge. This serie is characterized to be uni-directional high sensibility, and with good frequency response. Design for media interview, conference, speech, stage, filming, television, camera and camcorder, DVD/Skype/Computer, etc. Compatible with different brands of camera. Enough battery can work last for all day.