In just 24 hours of Prime Day, Amazon has seen a whirlwind of deals especially for home tech. If you’re looking for a robot vacuum that also mops and doesn’t break the bank, the search can be tough as most models still hover around $500 or more.

Roombas are on sale at Amazon ahead of Prime Day, with mopping Roombas starting at $219.99. See the best Roomba deals up to 54% off.

As for its mopping function: You should swap out its dustbin tank for a water-filled one and it’ll gyrate its scrub pad against hard surfaces. There’s three options for mopping levels, and when you’re all done, you can toss the scrub pad into the washer to keep it clean.

DJI’s drones are well-known for their excellent obstacle-dodging talents, and more recent releases use both vision and Lidar technology to spot and navigate around potential hazards even in low-light conditions. The Romo could well employ similar tech to avoid furniture, pets and other obstacles as it cleans your home.