CX-500Du/PS-510M Condenser...
Made in Shanghai
Type: Omni-directional Condenser
Frequency Response of CX-500Du: 20 to 20,000 Hz
Sensitivity (at 1,000Hz): -58±3dB*(1.25mV)*0dB=1V/μbar
Frequency Response of PS-510M: 20 to 20,000 Hz
Power Supply: Batt. Power 9V / 12 to 48V Phanton Power