21x 12 inch 3D Mobile Phone Screen Magnifier

1. Material: ABS shell material + high-definition acrylic lens2. Dimensions: 22.8 x 20.8 x 34.5 cm3. Weight: 0.563 g (including packaging)4. Power supply mode: USB charging/lithium battery5. Output power: 5 W6. Input voltage: DC 5V/500 MA7. Charging time: 2-3 hours8. Built-in subwoofer, can plug in U disk to play music9. Magnification: 2-3 times10. Battery capacity: 1200 mah