Interview, recording microphone series

Single unit: electrostatic condenser capsule
Directivity: unidirectional stereo
Frequency Response: 40Hz-16kHz
Sensitivity: -30dB±3dB(OdB=1V/Pa at 1kHz)
Equivalent sound noise level: 24dB A
Maximum sound pressure level: 130dB (THD≤1.5% at 1kHz)
Output impedance: 2000Q ± 30% (at 1kHz)
Use voltage: AAA 1.5V alkaline battery
Battery life: 70 hours of continuous use with new batteries