iRobot 12501 Looj 125 Remote Controlled Cordless Electric Gutter Cleaning Robot With Belt Clip Belt clip to free up your hands and make it easier for you to climb a ladder. Works with standard K-style, aluminum, copper, metal or vinyl gutters Internal antenna provides great range and reliability up to 40-feet away Smart speed moves slower going forward to clean thoroughly and faster going backwards to finish its mission quicker Flexible auger delivers the power needed to blast through clogs