1. Bluetooth version: V5.0+EDR
2. Material: PC+TPE
3. Listening to songs/calling about 13-15H (60-70% volume mode), super long standby time about 3 months
4. Bluetooth effective distance: about 10 meters
5. Horn diameter: 10mm
6. Speaker sensitivity: 98+/-3dB
7. Speaker impedance: 16 ohms +/- 15%
8. Speaker frequency response range: 20Hz-20KHz
9. Microphone sensitivity: -42+/-3dB
10. Microphone frequency response range: 100Hz-8000KHz