Bluetooth version V5.0 Audio codecs LHDC, AAC, SBC Driver unit balanced armature driver + dynamic driver Playback time ANC on: about 5 hours (earbuds) + 15 hours (charging case) ANC off: about 6 hours (earbuds) + 18 hours (charging case) Charging time about 1 hour (earbuds)/about 1 hour (charging case) Battery capacity 40mAh (earbuds)/500mAh (charging case) Frequency response 20Hz-40kHz Sensitivity 92±3dBSPL Impedance 24Ω Charging port USB Type-C