ETE-16 TWS Semi-In-Ear Digital Display Sports Bluetooth Earphones (Black)

1. Bluetooth version: 5.0 2. Bluetooth protocol: A2DP/AVRCP/H-SP/H-FP 3. Frequency response: 24GHz-20KGHz 4. Headphone battery: 30mAh 5. Charging case battery: 300mAh 6. Battery life: about 3 hours (80% volume) 7. Talking time: about 3 hours (80% volume) 8. Speaker: 13mm 9. Charging port: Type-C 10. Charging current: 5V 1A 11. Charging time: 1.5 hours 12. Weight: single earphone 4g, including charging case 39g