1. Bluetooth version: 5.4 2. Transmission distance: about 10m 3. Music time: about 3h 4. Charging time: about 3h 5. Signal-to-noise ratio: about 85dB 6. Working voltage: 7.4V 7. Frequency response: 20Hz-20KHz 8. Battery capacity: 6000mAh 9. Speaker: 25W x 2 10. Support Bluetooth, card insertion, U disk, data transmission and other functions
