G91 Ear Clip Bone Conduction TWS Noise Reduction Bluetooth Earphone(Green) Filter-Sony Earphone Case Volume button & power button

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G91 Ear Clip Bone Conduction TWS Noise Reduction Bluetooth Earphone(Green) Filter-Sony Earphone Case Volume button & power button1. Bluetooth version: V5. 3 2. Frequency range: 2. 4 2. 48GHZ 3. Headphone battery capacity: 28mAh 4. Charging box battery capacity: 250mAh 5. Charging time: 2h 6. Charging time: 1h 7. Working hours: 4 5h 8. Working range: 10m 9. Using low power consumption, the connection is faster and more stable. 10. High resolution sound quality and sound insulation technology protect your privacy 11. Ergonomic ear clip design, does not go into the ear, is