1) Powerd by 7.4V2000mAH Li-ion Battery; 2) USB charger included, output 9V500mA, charging time appr. 4-5hours; 3) Home Vacuum class hypa filter. 4) Lower noise 5) Many suction accessories - 1 * crevice sucker, 1*brush, 2*adapter nozzle, 1*hose, 1*filter; 6) ABS material. 7) On/Off switch 8) easily remove rubbish and wash filter. 9) Packing: 43.7*36*44.5cm, 16pcs/ctn, 11/10Kgs