Re b it Robt R3000 | Place the charging base on a hard, level surface and against the wall. Remove objects within 37 1m on the left and right side and within 67 2m in the front of charging base. Please de not place objects with strong reflecting surfaces around the charging base, Robot Vacuum Cleaner Quick Operation Guide Attention Before Use Please neatly arrange desks, chairs and household appliances to prevent the robot getting stuck during cleaning.