Compatible with: For iRobot Roomba 500 600 700 800 900 e5 i3 i7 Series.Meet your needs - mode keeps your robot in the room you want to clean and away from the room you don't want to cleanDual Mode - Halo Mode, which allows a 4-foot barrier around the device to keep Roomba out of the area. Beam Mode, which produces a 10-foot beam of infrared light to help Roomba enter or leave a specific areanavigation wall uses 2 aa battery(Not included) with low battery indicator light, Effectively help you control the work scope of robotssize: 4.3 x 4.3 x 10.5cmMaterial: ABScolour: BlackPackage Contents:1 x Virtual Navigation WallOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.