The BOYA BY-BM3051S is an upgraded super-cardioid shotgun microphone, specially designed for DSLR, compact camcorders, audio recorders and more.

Unique Capsule Captures Natural and Crystal-clear Sounds Featuring a unique custom capsule, it captures natural sounds in the 20Hz to 20kH. And the improved sensitivity and signal to noise ratio make sound clearer.

• Designed for DSLR cameras, camcorders, recorder and more.

• Super-cardioid polar pattern, to deliver broadcast-quality sound.

• Switchable Stereo and Mono modes. • Improved sensitivity and signal to noise ratio.

• Automatic power ON/OFF controlled by camera. • Two step high-pass filter (flat,75Hz).

• Three position level control (-10dB, 0, +20dB).

• 3.5mm headphone output for real-time monitoring.

• Powered by a pair of AA batteries for about 60 hours use.

• Camera shoe mount with 1/4" thread hole. • Reinforced ABS construction.

Acoustic principle:  Condenser
 Polar pattern:   Super-cardioid/Stereo
 Frequency Response:  20-20000Hz
 Sensitivity:   -30±3dB(0dB=1V/Pa@1kHz)
 Output impedance   50Ω
signal to noise ratio  82dB
 
Gain control  -10dB,0dB,+20dB
High-pass Filter  0Hz,75Hz
Output connector  3.5mm TRS audio output
Power Requirement
 Two AA batteries(not included)
 
operating time with battery  30 hours
other functions  Automatically Power ON
Size  184×65×133mm(7.2"×2.5"×4.8")
Weight  170g(6 oz)