Intelligent robot vacuum Smart Self-charging --B2005PLUS?robot cleaner can work all day long! It can automatically return to the charging base to charge itself when in low power. No need to worry about battery Easy Use with Remote Controller --No other buttons but the power switch. Auto working with built-in smart modes. No need to set up. You can also use remote controller to require it works like you want Triple Cleaning --Sweeping, vacuuming, & mopping. Three cleaning methods ensure the nice performance Two ways to charge --Comed with two Ni--MH rechargeable batteries (included) with recharger & virtual wall self recharger Equipped with water tank --Put water into it, it will wet the cleaning cloth (included) & mop the floor more clean, three function work?at thesame time, ?ensure to clean your floor very good Three?moving modes --Along wall?mode?/ spiral clean mode / auto clean mode Remote Control --With the remote controller, very small adjust to change B80