1. Working method: air pump 2. Power: 1.5w 3. Net weight: 140g 4. Size: 18x4.9x4.9cm 5. Working current: 200-400mA 6. Input voltage: DC 5V 7. Charging method: USB/built-in lithium battery 8. Material: ABS+PC 9. Battery capacity: 3.7V/400mAh 10. Features: microcrystalline compact, shrink pores, strong suction 11. Function: suck out blackheads, reduce acne, lift and tighten, control oil, improve keratin, and reduce fine lines 12. Product list: main unit x 1, suction head x 4, data cable x 1, filter screen x 1, manual x 1