?Upgraded FreeMove Technology 2.0?: Upgraded 6D built-in anti-collision infrared sensors help the vacuum detect probable stuck areas and adjust the cleaning path automatically. Anti-dropping sensors prevent the robot from falling off the stairs. ?Small Body Design?: With an 11'' diameter and unibody design, the M201 slides under and around bed, sofa, and other furniture for a thoroughly clean with high coverage and ultra-low failure rate. ?Strong Suction?: Powered by a strong digital motor, the M201 features strong suction power and a unique inlet design which does not clog with pet's hair like other robot vacuums with a rotating brush. ?Long Life Battery?: the M201 uses lithium iron phosphate batteries which have a longer life, better safety, and essentially no capacity decay compared with general lithium batteries. ?What You Get?: The M201 robotic vacuum cleaner, charging base, power adapter, dust bin, cleaning brush,2 HEPA filters,2 side brushes, user manual and our worry-free 12-month Protection.