Parameters:
1. Bluetooth version: 5.2
2. Transmission distance: about 10m
3. Battery capacity: 4400mAh
4. Charging time: 4.5 hours
5. Playing time: 2.5-4 hours
6. Standby time: about 90 days
7. Speaker specifications: 66mm
8. Frequency response: 20Hz-20KHz
9. Signal-to-noise ratio: greater than or equal to 85dB
10. Distortion: less than 1%
11. Charging voltage: DC 5V
12. Working voltage: 3.7V
13. Waterproof grade: IPX4
14. Charging interface: Type-C

Features:
1. High-power speaker + bass diaphragm design, rich and textured sound
2. 360-degree shocking surround sound, as if you are in the scene
3. Built-in noise reduction microphone, high-definition hands-free call, free your hands
4. Cool lighting design, multiple lighting changes, bring you a relaxing and pleasant music atmosphere
5. Built-in 4400mAh battery, meet daily use needs, long-lasting battery life
6. Equipped with 2.4G wireless microphone, you can enjoy karaoke with friends and family