iRobot Looj 330 Gutter Cleaning Robot Now at just under 2-inch high and 3 inches wide, this low profile design is more compact than previous Looj models Simple One Button CLEAN Mode, Lithium ion battery technology Four-Stage Auger uses a 4 stage cleaning process to dislodge and remove gutter debris The Looj 330 reduces repeated ladder climbing and overreaching from dangerous heights to make gutter cleaning a safer task Customizable Looj includes 2 sizes of auger ejectors, large and small Simple one button clean mode, lithium ion battery technology Four-stage auger uses a 4stage cleaning process to dislodge and remove gutter debris The looj 330 reduces repeated ladder climbing and overreaching from dangerous heights to make gutter cleaning a safer task Low profile design more compact than previous looj models, now at just under 2-Inch high and 3-Inch wide Customizable looj includes 2 sizes of auger ejectors, large and small