LED display and finger touch control. Super long stand-by time with lithium batteries. USB connect can do power charge anywhere. Anti backflow system prevents contamination. 10 adjustable suction levels. TPU air pumping pole. Special night lights design, easy to use in night. 100-240V/5V,1A,suitbale for adapter or chargeable battery.Battery capacity: 1200mAh. Charging time:2 hours. Suction power:L1-L10:12-40kpa. 1.5 hours(3 cycles).