Robot Roomba 560 1, Robot Roomba Series 2, Muti-mode for Cleaning 3, ... sweeper bin( optional accessory)5, Battery Storage and charging, powered by a rechargeable battery, it can last for hundreds of cleaning ... is wrong with a two-tone" uh-oh" sound followed by a narrated voice, and show the related error code on ... ,it will sense the height and avoid it. Robot Roomba 560