Roborock S4 Max Robotic Vacuum Cleaner Multi Surface App Control – Refurbished. Roborock S4 Max brings Roborock’s acclaimed robotic intelligence to a robot dedicated exclusively to vacuuming. Advanced features include automatic recognition of up to 4 maps – ideal for multi-level homes, app controlled Invisible Wall and No-Go Zones, and automatic room recognition. Cleanups can […]

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