• BOYA BY-BM3051S is a professional-grade stereo, loud channel condenser microphone for DSLR cameras, camcorders, recorders, and other devices
• The frequency response of 20Hz-20khz spreads broadcast-grade sound quality, suitable for photography crowds, anchors, bloggers, and other people
• Mono/stereo switch to different pickup modes to achieve the ideal radio effect
• The microphone has a three-stage gain function (-10,0,+20dB), +20dB gain can maximize the microphone's radio effect
• -10db attenuation to avoid sound distortion in the noisy recording environment. Low-cut function (flat cut / 75Hz) can filter low-frequency noise and other battery-powered, up to 30 hours of battery life)
• 3.5mm headphone monitoring hole and vibration reduction device to help users monitor the recording effect and reduce background noise generation

Specifications:

• Material: ABS
• Acoustic principle: capacitive
• Pickup mode: super-cardioid / stereo
• Frequency response: 20-20000Hz
• Sensitivity: -30±3dB(0dB=1V/Pa@1kHz)
• Output impedance: 50Ω
• Signal-to-noise ratio: 82dB
• Gain: -10dB,0dB,+20dB
• Low cut: 0Hz,75Hz
• Output hole: 3.5mm TRS audio output
• Power: 2 x AA batteries (not included)
• Endurance: 30 hours
• Other features: automatic power on/off function
• Size: 184 x 65 x 122mm
• Weight: 170g