1. BT v.5.0, chip: JL AC6976. 2. Battery capacity: charging case 300mAh, headset 40mAh. 3. Charging time: 1.5 hours for charging case, 1 hour for headset. 4. Calls / music time: 4.5 hours. 5. Standby time: 120 hours. 6. Sizes: 60*45*29mm. Weight: 40g. 7. Support leader-follower switch.
