1. Speaker: 10mm.
2. Impedance: 32Ω±15%.
3. Frequency response: 20~20000Hz.
4. Sensitivity: 92db±3db.
5. Audio plug: Ø3.5mm, weight:13g.
6. Headphone cable: TPE high elastic with enameled wire, length: 1.2m.
7. Microphone: controller with microphone.
8. Line control: one-touch operation, control music player + answer the phone, up and down song switch, control for Apple and part of the Android system.