1. Channel: Mono
2. Interface type: card reader
3. Signal to noise ratio: greater than or equal to 95dB
4. Connection method: Bluetooth connection
5. Battery capacity: 1800 mA
6. Frequency response range: 280Hz-16KHz
7. Output power: 5W
8. Power supply: USB charging/built-in lithium battery
9. Playing time: 6-8 hours
10. Bluetooth version: V4.2+EDR
11. Number of speakers: 1
12. Effective distance: 10 meters
13. Function: insert card, waterproof, radio, voice prompt, call function
14. Play format: Bluetooth, TF card
15. Material: Plastic
16. Support format: TF card
17. Size: 90x70x70mm
18. Weight: 395g
19. Speaker unit: 40mm
20. Charging time: 4 hours
21. Charging voltage: 5V