Wire: APS material, single-core shielded wire, very durable, 1.5 meters in length, can be used freely,
Microphone: The imported microphone core is not easy to produce howling, and the voice is clear, suitable for various mobile phone brands.
Microphone size: Φ6.0×2.2mm high sensitivity anti-interference microphone core
Sensitivity: -30dB±2dB RL=2.2kO VS=3.0V
Working voltage: 5.0V
Frequency range: 20HZ-16kHz
Signal to noise ratio: greater than 60dB
Plug diameter: 3.5mm
Very clear sound, perfect for what I needed! I would purchase in the future if needed.