1. Speaker: 8mm*2+6mm*2.
2. Impedance: 32Ω±15%.
3. Frequency response: 20~20000Hz.
4. Sensitivity: 102db±3db.
5. Audio plug: Ø3.5mm. Weight: 19g.
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, adjust the sound volume, adapt to control Apple and some Android devices.