1. Material: ABS, electronic components
2. Function: Bluetooth, call, TF card, FM radio, TWS couplet
3. Bluetooth version: 5.0
4. Effective distance: 10 meters
5. Channel mode: mono
6. Speaker specifications: 40MM, 4 ohms, 3W x 1
7. Signal to noise ratio: 75db
8. Extended memory: 32G
9. Frequency response: 60Hz-16KHz
10. Play format: MP3, WAV
11. Power supply mode: USB Micro charging / built-in battery power supply
12. Battery capacity: 500mAh lithium battery
13. Charging parameters: 5V / 0.3A
14. Play time: 3 hours
15. Music can be played in three modes: Bluetooth, TF card and FM radio
16. HIFI sound quality, 360 degree surround sound
17. Support TWS dual machine couplet to form a surround sound system with full stereo sound
18. Product size: 7 x 7 x 3.7 cm
19. Product net weight: 133 grams