Specifications:
Drive unit :50 mm
Microphone impedance :<2.2kq
Earphone sensitivity: 110+3db
Microphone size :6.6mm
Speaker frequency: 20 hz-20 khz
Plug diameter :3.5 mm
Speaker impedance: 320
Data line length :2 meters
Microphone sensitivity: -42+3db
Microphone directivity: Omnidirectional



Packing list: 

Earphone *1