4.0 single directional microphone collar clip microphone head, electret microphone core

4mm collar clip microphone head, electret microphone core, 4015 microphone head
Model: HT-B4015UL-30
Type: Electret microphone (microphone head)
Number of channels: single
Channel signal-to-noise ratio: 60dB
Sensitivity: -30 ± 2dB
Output impedance: 2.2k Ω (ohms)
Specification size: 4.0 * 1.5 (mm)
Frequency response: 100-16000Hz
Current consumption: 300 (Max) μ A
Maximum sound pressure level: 100 dB