1. Working voltage: 3.7V/7.4V 2. Charging current: 0.5~1A 3. Vacuum degree: 7000kpa 4. Power: 120W max 5. Battery capacity: 2x2000MAH 6. Rated power: 120W 7. Power cord length: about 1m 8. Instructions for use: (1). Check whether the charge is sufficient (2). Turn on the switch (3). Replace different nozzles according to different usage occasions (4). The rechargeable battery USB shows red for normal charging and green for fully charged (5). The charging time is about 3-4 hours, and the full charge can last for about 20 minutes.
