Usage: 100% brand new and high-quality made. 1.The cover of the protective main tire at the bottom of the body is twisted outwards; 2.This product uses 3.7 V 18650 lithium battery; 3.Place the product on the ground and press the switch button on the lower side to start work;When you're done ,press it. The button will stop working;The middle power key may hit the wall and stop working. Just restart Press the switch button. Cleaning of the Dust Box: Dirt may be blown out of the inlet,so please empty the dust box after each use. 1.The dust box is located at the bottom of the machine, pull the plug to turn outward. 2.Open the dust box,clean up the dirt inside,wipe out residuals using a dried damp cloth. 3.Place the dust box back into the machine. Points to Note on Battery: 1.This product uses 3.7 V 18650 lithium batteries; 2.Do not short circuit, charge, remove,heat,do not put it in the fire; 3.If the discharge of the battery accidentally enters the eye, please wash it with a lot of water in time and go to Medical treatment; 4.If the battery is insufficient and the product is not flexible,has no response or can not vacuum,etc..Please use the new battery. Notes on Product Usages: 1.The movement of this cleaning machine is random, there could be place where this machine fails to clean; 2.Places near tires may accumulate garbage,please clean it regularly 3.This machine will NOT stop working automatically; 4.There is NO stair sensing capability,please guard stairs to prevent it from falling; 5.Use the medium power key may hit the wall and stop working.At the same time, just press the switch button of the power key again. 6.The inlet should be kept unclogged to avoid any operational failure 7.When dust box id full, dirt may be down out from the inlet,so please dump dirt out of the dust box after each use. 8.Do not use this product to any other usages beyond its own functionality 9.This product is NOT water-proof