1. Bluetooth version: 5.3
2. Chip: Jerry JL6956C
3. Battery capacity: 4500mAh
4. Charging time: 4 hours
5. Usage time: 4 hours
6. Speaker unit: 4 inches x2
7. Power: 20Wx2
8. Size: 351.8x145.7x182.3mm
9. Weight: 2195g
10. Support Bluetooth, TWS, FM, U disk, TF card, AUX and other modes