Type: Dynamic Driver Diameter: 10mm Frequency Response: 20Hz～20000Hz Sensitivity: 98dB/mW Bluetooth: 5.0 Supported Profiles: A2DP, AVRCP, HFP, HSP Supported Codecs: SBC, AAC, aptX Continuous Playback Time: Approximately 8 hours (with charging case: approximately 26 hours) *Varies depending on usage environment. Quick Charge: Approximately 1.5 hours of playback with a 10-minute charge Charging Time: Earphones: Approximately 1 hour, Charging Case: Approximately 2 hours *Varies depending on usage environment. Interface: microUSB (Type-B) port Earphone Size: Approximately 18 x 27 x 27mm (longest part of the earphone, excluding FREEBIT) Charging Case Size: Approximately 98 x 40 x 39mm Weight: Approximately 6.9g (per side, excluding FREEBIT)