1. Bluetooth version: 5.2 2. Transmission distance: about 10m 3. Music time: about 4-6 hours 4. Charging time: about 3 hours 5. Signal-to-noise ratio: greater than or equal to 85dB 6. Working voltage: 7.4V 7. Frequency response: 20Hz-20KHz 8. Battery capacity: 16000mAh 9. Speaker: 4ohm 30W x 2 + 6ohm 10W x 1 10. Distortion: less than 1% 11. Size: 32.1x15.1x18.5cm 12. Weight: 3.34kg 13. Bluetooth connection, stable signal. Simultaneously supports TF card plug-in, USB flash drive, and AUX audio cable connection. 14. Dazzling RGB music rhythm light effect 15. Built-in noise-canceling microphone, high-definition hands-free calling 16. Support two speakers wireless interconnected synchronous playback to achieve cinema-grade surround sound