Features:
1. Waterproof speaker, safe and secure when going out and raining (please pay attention to tightly close the plastic cover, and do not soak in water)
2. Support TWS dual machine couplet to form a surround sound system with full stereo sound
3. The body is small, the surface is smooth, and it is easy to carry
4. Using Bluetooth 5.0 chip, fast connection speed, stable signal, low power consumption

Product parameters:
1. Material: ABS, silicone, electronic components
2. Function: Bluetooth playback, hands-free call, IPX4 waterproof, TWS couplet
3. Bluetooth version: 5.0
4. Effective distance: 10 meters
5. Waterproof rating: IPX 4
6. Interface type: USB
7. Signal to noise ratio: 75dB
8. Channel mode: mono
9. Speaker specifications: 40mm, 4 ohms, 3W
10. Play format: MP3, WAV
11. Frequency response: 60Hz-16KHz
12. Power supply mode: built-in lithium battery
13. Battery capacity: 400mAh lithium battery
14. Play time: 5 hours
15. Charging parameters: 5V / 0.3A
16. Output power: 3W
17. Product size: 9.8 x 9.8 x 4 cm
18. Weight: 200 grams