Why every pet owner needs this Roomba with a robotic mop arm Posted on March 22, 2023 By Charlielikes Review: The Roomba Combo j7+ is a 2-in-1 system that swiftly alternates between vacuuming and mopping thanks to its retractable arm. Tech Tags:‘a, ‘every, ‘needs, ‘why, ‘with, arm, mop, owner, pet, robotic, roomba, tech, technology, this