Boya by-m1dm microphone

Frequency range is 65hz 18khz output impedance is 1000 ohm or less cable length is 4m 13inch signal noise is 74db spl the connector is 3 5mm 1 8inch 4pole gold plug sensitivity is 30db 3db 0db 1v pa 1khz polar pattern is omnidirectional the transducer is electret condenser power requirement is lr44 included package includes bym1dm lavalier microphone x 1 clothing clips x 2 lr44 battery x1 carry pouch x1 foam wind screens x 2 3 5mm to 6 35mm audio connector x 1 english user manual x 1