Since the new Scooba 450 (2014 not get from Amazon) has only a radio tower in the delivery, We have these two ordered separately, as our rooms are mostly large or angled and the new Scooba gets better brushing in simple appetizers. The good side effect of the towers is that they recognize also our vacuum cleaner robot Roomba 780 as Virtual Wall. The best thing is that they have an off switch. That was not the case with the radio towers of the Roomba 780, which is a technical audacity basically. These towers need 2 batteries: 1.5V size C. These are not supplied. I have struggled me in the beginning to place the towers properly, because the site of the on-off switch (above the white slider) is not at the same time the page is sparked from. That's what I first thought intuitive, but is not so. The towers send the side on the opposite side of their signal, which is indeed makiert, but unfortunately hard to see black on black. If you're accustomed to the 780 towers of iRobot Roomba, you have to change something, because the post on the wide side.
