Monomer: back electrets condenser
Directivity: heart-shaped
3.5mm audio output
Metal shell
Frequency response: 50Hz-16KHz
Sensitivity enhancement: + 10dB ±2dB
Sensitivity: -37dB±3dB (0dB=1V/Pa at 1kHz)
The equivalent noise level: 24 dB A
Maximum Sound Pressure Level: 130dB(THD≤1.5% at 1KHz)
Output impedance: 200Ω±30% (at 1kHz)
Channel: Mono
Working Voltage: CR2032
Battery life: 50-60 hours