By-mm1 Boya Videomicro Compact On-camera Recording Microphon

1.sensitivity:-42db +/- 1db / 0db=1v/pa . 1khz 2.frequency response:35-18khz +/-3db 3.dimensions:φ22*81mm 4.transducer:electret condenser 5.polar pattern:cardioid 6.plug:3.5mm trs and trrs connector 7.weight:86 grams /0.19 lb 8.signal to noise ratio: 76db spl description: 1.it is a magic cardioid microphone what be designed to promote the vedio voice quality. 2.it comes with both trs cable and trrs output cable. 3.by-mm1 are compatiable for smartphones,camcorders,pc,cameras,audio recorders and the other audio devices. 4.the weight about by-mm1 is very light,it will be very easy when you shooting. 5.you also need not to worry about the charging of battery. 6.it comes with the anti-shock mount and furry windproof shield,then it will make your shoot be more easy and convenient.