features wider frequency range, higher sound definition and father pickup distance. Features: Built-in professional high-performance ECM pickup adopts physical sound interference pickup technology, featuring wider frequency range, higher sound definition and further pickup distance(20 meters). Turn on +12dB sensitivity switch to capture more trivial sound. The NCR denoise pickup technology can largely reduce noise. Front effective shock absorber can reduce the mechanical noise of camera and other vibration noise. Alloy tone tube make it robust, secure and effective on shielding electromagnetic interference. Adopt brand new plug in power power technology, the mic is powered by camera, battery free. Standard 3.5mm jack output suitable for DSLR camera. Hot shoe adapter make it easy to mount on camera top.