Overview:Stereo earphone with Microphone SE12 High quality, true to sound Tangle-free design cable Ergonomic earpieces design Answering remote control Built-in microphone 3 different sizes (S/M/L) of silicone earbuds, to fit your unique needs

Features:

 Specifications:
Frequency Response: 20-20,000HZ
Sensitivity: 103+/-3dB
Impedance: 16 ohm+/-15%
Power Capability: 3mW
Plug type:  Type C