Microphone: Yes
The memory card is not supported
16 Omega resistor:
Volume control: Yes
Connector: 3.5mm
Communication wiring:
Frequency response range: 20 - 20000 hertz
Line length: 1.2 meters
Line plug type: type
Non active noise elimination
Phonation principle: dynamic
Application: no support
Sensitivity: 106db
Control button: Yes

Packing contents:
1* earphone
1* clip
2 sets of earplugs
1* zipper bag