1 - Cleaning method with strong reciprocating (movement) back and forth over 1000 times a min. - It enables to clean with one tenth reduced effort of the general floor cleaner. - Regardless of the materials of the floor, it enables to clean easily and conveniently. - Strong power saving product with power consumption of under 30W. - As wireless type, move freely without limitation. - Convenient use and effects exceeding steam. - With the installation of lithium batteries, it can use for 1 hour after 3 hours charging time.