awei PC-1T 1.2m Mini Stereo Semi In-ear Earphones(Black)

1. Line length: 1.2 meters2. Plug: Type-C3. Speaker: 14.2mm4. With ear line control5. Frequency response range: 20 to 20000Hz6. Line control function description: answer the phone, the volume increase and subtraction7. Channel system: surround stereo sound8. Power: 1-3MW9. Mi head sensitivity: -29dbfs