BOYA BY-VM01 Mini Directional Video Condenser Microphone for Canon Nikon DSLR Camcorder Description:   The BOYA BY-VM01 mini Microphone is designed for recording audio while making videos、 along with this mic your camera can create higher-quality audio. It designed for use with a digital SLR cameras and camcorder with a 3.5 mm (diameter) stereo mini-pin jack、 and fits into compatible camera shoes、 and connects to the camera via the 3.5mm mini-plug. Equipped with a cable stop which holds the cable in place to prevent noise from being recorded with accidental. Reduces vibration noise during autofocus.   Features:   · Broadcast-Quality Mic · Unidirectional Condenser microphone · Integrated Shock Mount and Windshield · Low noise circuitry · Reinforced ABS construction · 1.5V AAA battery · Deadkitten Windscreen included  Specifications:                Type           condenser microphone (unidirectional)               Frequency Response         38-20、000Hz               Sensitivity         -40dB +\/- 3dB \/ 0dB=1V\/Pa、 1kHz               Signal to Noise Ratio         75dB or more               Output Impedance         1.0k Ohm or less               Power         1.5V battery(not included)               Plug         mini-pin plug (3.5mm)               Dimensions(LxHxD)         109x75x18mm               Net Weight         62g        Frequency Response:    Polar Pattern:    Package Included:  1 x BY-VM01 Microphone 1 x Dead Kitten Windscreen 1 x Windshield 1 x Portable bag  Detail Pictures: