1. Bluetooth version: v5.0 + EDR
2.Material: PC+TPE
3. Listening to songs/calls around 13-15h (60-70% volume mode) super long standby time around 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