1. Bluetooth 5.1; Chip: Jerry AC6973
2. Battery capacity: charging case 300mAh, earphone 35mAh
3. Charging time: 1.5 hours for charging case, 1 hour for earphones
4. Talk/music time: 4.5 hours; standby 120 hours
5. Size: 58*58*25mm; total weight: 35g
6. Support master-slave switching, call Siri

1. Bluetooth 5.3; Chip: Jerry AC6973D4
2. Battery capacity: charging compartment 500mAh; earphone 110mAh
3. Use time: 12 hours; production time: 300 hours
4. Size: 98*66.5*30mm; total weight: 87g
5. Full open air pop TWS wireless bluetooth earphones
6. Support master-slave switching and calling Siri

1. Bluetooth 5.1, chip: Jerry AC6973
2. Battery capacity: charging compartment 250mAh, earphone 25mAh
3. Talk/music time: 3.5 hours, 120 hours standby
4. Size: 48*44*25mm, total weight: 31g
5. Support master-slave switching and calling Siri

【New upgraded Activity Tracker and Fitness Tracker】Activity trackers and smartwatches with powerful health innovations, The fitness tracker watch supports heart rate monitor,blood pressure, step tracker and sleep monitoring,blood oxygen measurement and all-day heart rate monitoring automatically monitors your real-time heart rate for training and for daily life.The fitness watch for men and women has 28 exercise modes to suit your various exercise styles, supporting both indoor and outdoor workouts. And the smartwatch tracks your sleep and keeps track of your body health data to help you better understand your health. With