... 6.5mm*5M 3..Microphone head:entire steel, Wide frequency response wire microphone1.Impendance: 600 OHM±30% 2.Polar pattern: ... hypercardioid 3.Frequency response:60HZ-15Khz 4.Sensitivity:-69dB 5.Microphone head:entire steel ... , 6.Cartrige:hypercardioid, specially wire frequecny response, Anti-shake 7.Switch;no noise, can use 10 thousand ...