BT v5.1. Chip: JL AC6973.
Battery capacity: charging case 300mAh, headset 35mAh.
Charging time: 1.5 hours for charging case, 1 hour for headset.
Talk / music time: 4.5 hours. Standby time: 120 hours.
Sizes: 58*58*25mm. Total weight: 35g.
Support leader-follower switching, summon for Siri.
Only English is supported, language switching is not supported.