Number of blades: 3 blades, Drive system: back-and-forth type; Power system: Charging; Shaving type: Dry/wet / Voltage: AC 100 - 240 V, 50 - 60 Hz; Charging time: 60 minutes; Charge remaining charge display: 3 levels of charge indication; Usage time: Approximately 50 minutes; Replacement blade: 18 months; Power consumption: 7 W. Can be washed with water: Yes. Can be used overseas: Yes. Switch lock: Yes. Quick charging: Yes. Washer: None. Product size: W 2.5 x H 6.5 x D 2.0 inches (64 x 166 x 51 mm). Weight: 6.1 oz (173 g). Color: Blue.