Let me start by saying I am very impressed with this Shark AI Ultra 2-in-1 Robot!! I highly recommend purchasing one if you have not already. It works amazing!! I like the fact I get to home to a clean house both vacuumed and mopped. I do have to empty it but that doesn't bother me at all. I have the app downloaded on my phone and before getting home I get it to vacuum the whole house and then mop it. I like how well it maps out every single corner and gets under my table in the kitchen for a deep clean! You can hook it up to Bluetooth and wifi. It connects very easily which was nice. When done cleaning it returns to it's dock. Go buy you one if you have not already!! I will only shop Shark for now on!!