Up to 11 hours, the case provides additional 29 hours (ANC OFF); Up to 8 hours, the case provides additional 21 hours (ANC ON), Bluetooth Version: V5.4.
50dB Hybrid ANC Noise Cancellation, Sound360 Spatial Audio, AI Noise Cancellation, Space Capsule Design Concept, Up to 7 hours, the case provides additional 25 hours (ANC OFF); Up to 5 hours, the case provides additional 18 hours (ANC ON)