1. Shell material: ABS 2. Case material surface technology: fine grain, high gloss 3. Large blue screen, separate voltage display 4. Input: 12-24V 5. Output: 5V-1.5A or 5V-3.1A C port: 9V-2A 6. Total power: 7.5-15W 7. Output port type: USB, type-c 8. Protocol: Bluetooth 5.0 9. FM transmitting, Bluetooth, USB charging, U disk reading, TF/ colour light, EQ function 10. Q10 weight: 38g 11. Q10 size: 80x57x42mm 12. Q9 weight: 49g 13. Q9 size: 100x70x45mm 14. Packaging: colour box