Boya BY-M1DM Dual Lavalier Microphone Clip on Mic

Brand : boya model : clip-on transducer : electret condenser polar pattern : omni-directional frequency range : 65hz ~ 18khz signal / noise : 74db spl sensitivity : -30db +/- 3db / 0db=1v/pa, 1khz output impedance : 1000 ohm or less connector : 3.5mm (1/8”) 4-pole gold plug power requirement : battery lr44 (included) cable length : 4m(13ft) net weight : 68g(2.4 oz) compatitable : smartphones, cameras, camcorders, audio recorders, tablets,and other audio/video recording devices