Features:Super – CardioidLow Self-noise Low-cut FilterSuper Anti-interference Special Design for Excellent Shock-absorbing Packed with Windscreen and Wind Muff Cold-shoe Design with 1/4 Thread at the BottomSensitivity:-33dB±2 dB / -23dB±2 dBOutput Impedance:200ΩDirectional Condenser Video Microphone with the Super-Cardioid Polar pattern, is specially designed for video shooting, meeting.and interview for devices including camera, camcorder as well as professional video shooting equipment.Meanwhile the Microphone is designed with +10dB sensitivity adjustment, low-cut filter functions, and super strong shock-absorbing bracket, which provides your video with more excellent voice. Notice:Normal Working Status: Green Low-power Working Status: Red (Be aware to replace batteries now)Not including batteryquantity: 1