Charge time: 2 hours, Battery life: Up to 13 hours (talk time); Up to 52 hours (standby time), Wireless range: Up to 180 m in open area; Up to 55 m in typical office environment, Bluetooth version: 5.2, Button user controls: Power on/off; Call answer/end; Mute; Volume +/-, Ear cushions: Artificial leather (surface material), Compatible Operating Systems: macOS; Windows, Warranty: 02 Years, 8L560AA.