1. BT v5.1. Chip - JL AC6983.
2. Battery capacity - charging case 320mAh, headset 30mAh.
3. Charging time - 1.5 hours for charging case, 1 hour for headset.
4. Talk / music time - 4 hours. Standby time: 120 hours.
5. Sizes: 49*47*25mm. Total weight - 43g.
6. Support leader-follower switch, summon Siri.
7. Only English is supported, language switching is not supported.