J1 USB-A to USB-C adapter

1. BT version: 5.3; chip: Wuqi WQ7033MX 2. Battery capacity: charging case 550mAh; earbuds 70mAh 3. Usage time: 8.5 hours of music, 7 hours of calls 4. Material: ABS+PC; total weight: 71g 5. Waterproof rating: IPX4 6. The earbuds can be used for 2 hours after charging for 10 minutes (music) 7. The charging case supports wireless charging