Unit size 1095x265x271mm Net weight 3.85Kg Rated power 250W Rated voltage 21.6 V Li-ion battery 4000mAh Working time 38min (+10%/-5%) Suction 14KPa (+10%/-5%) Capacity of clean tank 700ml Capacity of sewage tank 700ml Charging time 3.5~4.5h Motor BLDC Fliteration HEPA filter Handle 568mm Noise ≤80dB