1. Speaker: 10mm.2. Impedance: 16Ω±15%.3. Frequency response: 20~20000Hz.4. Sensitivity: 92db±3d.5. Audio plug: Ø3.5mm. Weight: 16g.6. Headphone cable: TPE high elastic line with enameled wire, length: 1.2m.7. Microphone: controller with mic.8. Remote control: Functional single-button operation control of music playback + answer the phone, up and down song function, adapted to control Apple and Android system.