Camcorder microphone series audio technica pro transducer type condenser directivity cardioid suitable for video camera interview podcast sensitivity 1khz 32 mvpa frequency response 100 17000 hz operating time 200 h dimensions 117 mm capsule diameter 21 mm noise level 119 db transmission mode cable dynamic range 82 db signal noise ratio 57 db impedance 600 ohm battery supply function onoff switch plug 3 5mm jack power supply lr44 but