1. Speaker: 10mm.
2. Impedance: 16Ω ± 15%.
3. Frequency response: 20 ~ 20000Hz.
4. Sensitivity: 92db ± 3db.
5. Audio plug: Ø3.5mm, weight: 15g.
6. Earphone cable: TPE high elastic with enameled wire, cable length: 1.2m.
7. Microphone: equipped.
8. Remote control: functional single-button operation control music playback + answer the phone, next and previous song function, adapt to control Apple and Android system.