Fully charge robots battery before each cleaning cycle. Filter could not be washed by water. The product contains electronic parts, DO NOT submerge or spray it with water, clean with a dry cloth only.This product is used only indoors, do not use it outdoors. It doesn't support invisible wall function. The item "Home Smart Mop Robotic Cleaner IR Sensor Automatic Sweeper Dust Vacuum Cleaner" is in sale since Wednesday, March 13, 2019. This item is in the category "Home & Garden\Household Supplies & Cleaning\Vacuum Cleaners". The seller is "ny1994chuhanyao1" and is located in Shenzhen. This item can be shipped worldwide.