1. Speaker: 10mm.2. Impedance: 16Ω±15%.3. Frequency response: 20~20000Hz.4. Sensitivity: 92db±3db.5. Audio plug: Ø3.5mm. Weight: 11g.6. Headphone cable: TPE high elastic line with enameled wire, length: 1.2m.7. Microphone: controller with microphone.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.