Don't let dirt run your schedule...run its schedule with the iRobot Roomba with Scheduling and Dirt Dog Combo. The iRobot Roomba cleans when it's convenient for you, the on-board scheduling system that allows it to clean once a day up to 7 times per week. Attack your dirty shop, patio or garage with the clever Dirt Dog. It cleans hard-to-reach places easily with suction powerful enough to pick up metal nuts and bolts, wood chips, leaves, dirt and other heavy-duty debris. Plus, its cutting-edge AWARE intelligence helps it calculate the optimal cleaning path and behaviors for the job. iRobot Roomba with Scheduling and Dirt Dog Combo Includes: Roomba 550 - measures approx. 13" in diameter x 3-1/2"H Dirt Dog robot 110 (battery and brushes preinstalled) - measures approx. 21.9" in diameter x 4.7"H 2 Virtual Roomba Wall Lighthouses Roomba charging home base Roomba brush-cleaning tool Roomba 3 replacement filters Roomba rechargeable battery Roomba AC adapter 4 C batteries (for Virtual Roomba Wall Lighthouses) Roomba user's manual Roomba quick start guide Dirt Dog AC adapter Dirt Dog brush-cleaning tool Dirt Dog manual Dirt Dog quick start guide iRobot Roomba 550 Features: On-board scheduling system - Roomba leaves its home base at the time you schedule, cleans and returns to recharge; easy to use with clearly marked buttons on the scheduling interface Virtual Wall Lighthouses - restrict the Roomba from off-limits areas Offers the latest technology and up-to-date innovations - more efficient, more coverage and better cleaning performance Works on wood floors, carpet, tile, vinyl and linoleum Determines when to use its 4 cleaning behaviors: spiraling, wall following, room crossing and dirt detection - helps decide appropriate cleaning method for conditions Spiraling - cleans a concentrated area Wall following - uses this technique to clean the full perimeter of the room and navigate around furniture and obstacles Room crossing - criss-crosses the room to ensure full cleaning coverage Dirt detection - senses dirt and lights up the Dirt Detect light, cleaning more intensely in that area 3-stage cleaning system Side brushes sweep wall edges and work their way into corners 2 counter-rotating brushes work like a broom and dustpan to scoop up dirt, hair and debris Picks up remaining fine particles while the filter traps dust and other small particles; cleans rugs and carpets to remove dirt, dust and pet hair 2 cleaning modes - tailor cleaning job to suit your needs Clean mode - cleans entire room Spot mode - for a more intense clean in a localized area Self-adjusting cleaning heads - automatically adjust from carpets to hard floors Charging drive-on home base - Roomba returns to home base at the end of each cleaning cycle or when its battery is running low Rechargeable battery - lasts for hundreds of cleaning cycles Cliff-sensing technology - Roomba automatically avoids stairs and other ledges Anti-tangle system - prevents Roomba from getting stuck on power cords, carpet and rug tassels and fringes Convenient bagless bin empties easily Fine filter traps tiny particles that would normally go unnoticed Features a voice demonstration demo Model #: 550 Power Source: Roomba - rechargeable battery (installed); charging base station - AC adapter; Virtual Wall Lighthouses - 4 C batteries; all included UL listed Made in China Comes with a manufacturer's 1-year limited warranty Dirt Dog Features: Easily navigates under cars, workbenches and grills while still avoiding drop-offs High-speed counter-rotating brushes - grab dirt and debris off of industrial floors and captures it in an oversized, bagless container Shock-absorbent front end - keeps your Dirt Dog in great condition while still dishing out a great clean Cutting-edge iRobot AWARE intelligence - iRobot's system allows it to cover each section of the floor an average of 5 times; spirals to clean large areas; follows walls to clean room's perimeter and navigate around obstacles; cleans new areas while crisscrossing the room Simply press the Clean button and move on to the next job while the Dirt Dog does the rest Built-in rechargeable battery - just plug it in to charge and it's ready to go when you need it Model #: 110 Power Source: Built-in rechargeable battery UL listed Made in China