Product model: 106255 Input power: ＜ 4.0w Input voltage: 5V Input current: ＜ 1A Bare metal weight: 124g Battery capacity: 850MAH Battery type: lithium battery Suction: 53KPA Charging time: about 200 minutes Service time: about 150 minutes Product features: 1. Suck (suck out the black head) 2. Adjustment (three gear adjustment) 3. Decrease (reduce grease) 4. Clean (deep cleaning) The physical black head can dredge pores and lead out dirt.