The BOYA BY-VM01 mini Microphone is designed for recording audio while making videos, alone 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,

The BOYA BY-VM01 mini Microphone is designed for recording audio while making videos, alone 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 autofocusFeatures

• 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
• Plug:  mini-pin plug (3.5mm)  
• Dimensions(L*H*D): 109*75*18mm
• Net Weight: 62g