Type: back electret condenser microphone

Point Features: a single point × 2

Frequency response: 30-18000Hz

Sensitivity: -40dB ± 2dB (0dB = 1V/Pa1KHz)

Output Impedance: ≤ 200Ω

Maximum SPL: 120dB (1KHz THD ≤ 1% THD)

SNR: 76dB (1KHz at 1 Pa)

Power Supply: DC3V (CR2, 3V lithium battery)