Parameter: 1. Bluetooth solution: Jerry Bluetooth4.2 2. Bluetooth distance: 10 meters 3. Product size: 29x14.5x12.5cm 4. Speaker power: 2x10W 5. Speaker specification: 4 inch external magnet 6. Battery specifications: built-in 18650 1800MAH 7.4V 7. Play time: 2-3H 8. Charging method: Charger specification: 5V-2A 9. Charging time: 1-2H 10. Product material: ABS plastic 11. Main function: Bluetooth TF card AUX U disk comes with K song mode 12. Packing size: 30x15x18.5cm 13. Accessories content: data cable + audio cable + two wireless microphones 14. Microphone scheme: BK U band 15. Microphone distance: 10 meters 16. Microphone battery specifications: built-in 18650 1500MA 3.7V 17. Microphone charging time: 1-2H 18. Microphone type: unidirectional condenser Features: 1. Condenser microphone, supporting all mainstream karaoke software. 2. Supports wireless Bluetooth connectivity for devices such as mobile phones/tablets/laptops/desktops. 3. Six sound effects, switch at will. 4. HiFi sound, the sound quality is more fidelity. 5. Support AUX insertion, the sound is more stereo. 6. Built-in high-capacity battery for long use time. 7. Suitable for all kinds of scenes, such as family entertainment, friends gathering, outdoor karaoke and so on.