Chinese robot vacuum maker Roborock unveils the Saros Rover, a concept robot vacuum with two wheel-legs to let it climb steps, as robotics dominates CES (Dana Wollman/Bloomberg)

Dana Wollman / Bloomberg:
Chinese robot vacuum maker Roborock unveils the Saros Rover, a concept robot vacuum with two wheel-legs to let it climb steps, as robotics dominates CES  —  Roborock, a Chinese robotic vacuum cleaner brand, unveiled a concept device with two legs that can climb stairs in people's homes …

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