Two-way Bi-directional Mini Shotgun Microphone (For 3.5mm TRS Interface Camera)PROFESSIONAL VIDEO MICROPHONE: 7 RYMS MinBo M2 comes with a professional cardioid condenser capsule, accurately pickup. The front mic is a super-cardioid pattern and the rear mic is a cardioid pattern. It can make the sound more clear and is suitable for a variety of occasions. Perfect for a dual interview, meetings, etc. TWO-WAY DIRECTIONAL DESIGN: The 7RYMS MinBo M2 camera mic can be switched to a Super-cardioid pattern or Bi-directional Pattern. When working in a single mic, the front mic will pick up the sound in the super-cardioid pattern. And while working in a dual mic, the front and rear mic will pick up the sound in a Bi-directional pattern. Please choose the directional way according to your recording scenes. BATTERY-FREE DESIGN: Powered via plug-in power from the camera, so the double mic can be used by connecting the DSLRs without using batteries. SUPER ANTI-INTERFERENCE: The mini external mic builts in full metal material can strengthen the anti-interference function to reduce the noise from vibrations. Which makes your recording be able to have strong anti-interference, durable, and sturdy but still very light, only 0.10lb (45g). EXCELLENT SHOCK ABSORPTION: Equipped with a special shock mount, the dual capsule external Mic provides industry high-standard seismic support for voice recording. Effectively reduce the shaking caused by noise. Three fixing methods: cold shoe, 1/4", 3/8", support top-mounted installation, handheld, and multiple play methods to match your different installation needs.Only opened for review!