Speaker size: 40mm
Audio decoding: SBC
Frequency response range: 20-20kHz
Connection method: Type-C charging cable
Bluetooth version: BT 5.0 Bluetooth frequency: 2.402-2.480GHz
Battery specifications: Rechargeable lithium ion battery 720 mAh
Charging time: 3 hours Headphone playback time: 40H (ANC ON)/ 60H (ANC OFF)