WIWU Airbuds Pro ANC Bluetooth 5.1 TWS Noise Reduction Wireless Bluetooth Earphone

1. Chip: JL8973 2. Bluetooth version: BT 5.1 3. Connection distance: about 10m 4. Battery: charging box 300mAh, earbuds 30mAh 5. Charging time: about 2 hours 6. Working time: about 3-4 hours 7. Standby time: 180 hours 8. Charging time of charging box: about 1 hour 9. Charging interface: 8 Pin 10. Headphone size: 20.9x21.8x24mm 11. You can actively turn on noise reduction and transparency mode to reduce more noise and make calls clearer. 12. Composite diaphragm dynamic driver, lossless HiFi original sound, bringing you an extraordinary sound quality experience.