1. BT v5.3. Chip: Jerry AC6983.
2. Battery capacity: charging case 250mAh, earphone 30mAh.
3. Use time: 4 hours. Standby time 150 hours.
4. Sizes: 48.5*48*26mm. Total weight: 35.5g.
5. Open the cover, take out the earphones to turn it on. Support leader-follower switching, summon for Siri.