Shotgun Microphone, K&F Concept CM-500 Professional Interview Mic Recording for Nikon Canon DSLR Camera Gopro Hero 4 (Need 3.5mm Interface) The CM-500 is a hypercardioid directional microphone, with a dual-tone complementary sound interference pick up technique, performance a wide frequency response and high resolution resolution. The best pickup area focuses on the front of the microphone, effectively reducing noise in other directions,ensure the sound effect of the main body. With the design of alloy material, it can effectively shield the electromagnetic interference and pick up the sound,stronger and more durable. Concealed shockproof structure designed to insulate the noise from light touch and vibration. External +10dB sensitivity enhancement switch adapts to different sound intensity pickup, the farthest pick distance is 20 meters away. Low power consumption energy saving design, use the CR2032 button battery, the maximum use time can up to 50-60 hours. Standard hot shoe interface can be fixed on camera and camera; The bottom 1/4 screw can be fixed on tripod or other supports. Compatible with all devices with a 3.5mm MIC interface, use the attached 3.5mm transfer connector for mobile phone use. Suitable for news interview, conference, wedding, party, sports event, micro film, etc. Energy-saving LED instructions: Turn on bright red and then go out, the microphone has entered the sound pickup work state; When the LED light is bright red, the battery charge is low and the battery needs to be replaced.