1. Material: ABS, electronic components
2. Function: insert card, radio, voice prompt, call function, U disk playback, 3.5MM audio input, TWS couplet
3. Interface: USB Micro
4. Speaker specifications: 52mm, 4 ohm, 5W
5. Bluetooth version: 5.0
6. Effective distance: 10 meters
7. Support memory card: 32G
8. Channel: mono single diaphragm
9. Frequency response: 60Hz-16KHz
10. Charging parameters: DC 5V / 0.5A MAX
11. Output power: 5W
12. Signal to noise ratio: 75dB
13. Play format: MP3, WAV
14. Support format: U disk/TF card
15. FM function: yes
16. Power supply mode: built-in lithium battery
17. Built-in battery: 1200mAh lithium battery
18. Support TWS couplet to achieve surround sound
19. High-power NdFeB speaker + thick bass diaphragm, strong power
20. Product size: 15.7 x 4 x 7.7 cm
21. Product net weight: 230 grams