1. BT version: 5.0, chip: JLAC6936D. 2. Battery capacity: 400mAh (charging case); 40mAh (left and right headsets). 3. Charging time: about 1.5 hours for charging case, about 2 hours for headset. 4. Calls / music time: 4 hours. Standby time: 200 hours. 5. Total weight: 48g, single headset: 3g. 6. Support leader-follower switching.
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