Product parameters:
1. Material: metal, ABS, electronic components
2. Function: radio, voice prompt, call function
3. Play mode: Bluetooth/SD card/AUX/FM
4. Interface type: USB
5. Frequency response range: 100HZ-20KHZ
6. Output power: 5W
7. Signal to noise ratio: 75db
8. Channel: 2.1
9. Number of speakers: 2
10. Expansion storage: 32GB
11. Operation mode: button
12. Support format: TF card
13. Bluetooth protocol: 5.0
14. Effective distance: 10 meters
15. Power supply mode: built-in lithium battery
16. Battery: 1500mah lithium battery
17. Play time: about 8 hours at normal volume
18. Charging time: less than 3 hours
19. Product size: 11.1 x 11.1 x 4.5 cm

Packing list
– Speaker x 1
– Instruction manual x 1
– Charging cable x 1