Canon 50D 5D mark ii Stereo Microphone

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Function
Frequency responses: 30-1800Hz
Sensitivity: -40dB (0dB = 1V/Pa at 1 KHz)
Direction: Uni-direction
Output Impendency: 200Ω
S/N Ratio: 76dB (1 KHz at 1Pa)
Max SPL: 120dB (at 1KHzs1%T.H.D)
Power Requirement: DC3V

The price :$36.99

more details :

Professional DC Stereo Microphone for Canon 50D 5D mark ii

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