Home Slickdeals Roborock S4 Max Robot Vacuum with Multi-Level Mapping $290 & More +... Slickdeals Roborock S4 Max Robot Vacuum with Multi-Level Mapping $290 & More + Free S/H By ARCOM - 21 March 2022 59 0 SHARE Facebook Twitter Go to the deal page: Roborock S4 Max Robot Vacuum with Multi-Level Mapping $290 & More + Free S/H