1.    Speaker: 10mm
2.    Audio plug: Ø3.5mm;    weight; 10g
3.    Earphones cable:  TPE  round wire ;   1.2M
4.    Impedance:    32Ω±20%                     
5.    Sensitivity:     95db±3db
6.    Frequency response: 20~20000Hz
7.    Microphone:  controller with mic
8.    Wire control: functional one-button operation control, adapted to control Apple and Android
9.    Full metal earphone