Why does Roomba Combo J7+ need to add a IC Chip to its Mop Rag?
Recently, we had a hands-on experience with the new machine Roomba Combo J7+ from iRobot, which combines sweeping and mopping functions. What’s most surprising is that there is an IC chip embedded in the mop cloth of this machine. I believe few people have heard of the design of adding chips to a mop rag. … Read more