: Various used units range from approximately $80.00 for working models to lower prices for units sold "for parts". Product Specifications & User Feedback Roomba 770
: Includes HEPA-type filters, a 3-stage cleaning system, and "iAdapt" responsive navigation. It comes with a remote control and two "Virtual Walls" to restrict its movement. buy roomba 770
As of April 2026, availability is primarily limited to used or refurbished units, though occasional "new in box" (NIB) listings appear on auction sites. : : Various used units range from approximately $80
: Users highlight that it is easy to maintain , simple to use , and cleans well , especially for picking up pet hair. a 3-stage cleaning system