Features: Professional high performance super cardioid pickup mic with dual head complementary noise interference pickup technology, the effective pickup distance can reach 20 meters. NCR denoise pickup technology largely enhance noise reduction effect. External +10dB sensitivity enhancement is designed for picking up different sound intensities. Special shock-resistant structure effectively reduce mechanical noise of camera/vibration noise. Alloy tone tube make it robust, secure and effective on shielding electromagnetic interference. Universal hot shoe mount to suit for DSLR camera, digital video camera, smartphone clip etc. Low power indication for real-time battery condition monitor. Standard 3.5mm stereo jack for signal output. Built-in 200mAh battery can offer 50-60hrs service time; USB charging. Metal and ABS construction with surface anodic oxidation treatment for a solid and delicate body.