CleanMate QQ2 Plus is the enhanced model of QQ2. You can define QQ2 Plus unit daily cleaning scheduling time up to 7 days per week. That means all cleaning will be done automatically according to your set up day and time. It can easily handle various surfaces including carpet, hardwood tile and linoleum. It can also go underneath the beds and other hard-to-reach places to clean dirt, dust and pet hair while simultaneously killing bacteria and deodorizing with its ultraviolet light. With Cliff Sensing technology built-in, CleanMate intelligently avoid stairs and ledges. CleanMate can work ceaselessly up to 70 minutes on a single charge. Use remote control to start unit cleaning or stop unit operation. Automatically returns to dock for self-recharging when low on battery power. Resumes cleaning after battery recharge completion. Auto-off feature conserves power when unit is not in use and being recharging. Compact size remote control which is embedded into upper cover. 3-1/2 hours quick battery charging. UV light provides disinfection. Photo sensor detects stairs to avoid falling down. Stop automatically and making warning beeping when wheel gets stuck. Easy roller brush removal for cleaning. Debris level is visible via dust bin window. Five-step repetitive rotation movement provides the most effective way to clean your rooms. Timer for cleaning time setting. Built-in slot to put fragrance for odors removal. Three washable filters to reduce cost of ownership. Move out from underneath furniture (dark area) when it is low on power or has ended it’s cleaning job. NiMH 2500 mAh battery: 500+ recharging cycle. Noise level: 80dB at distance of 20cm. Suction capability: Vacuum fan speed 5.2 meter/second with 20 Watts. Capacity of dust bin: 0.3 liter. Cleaning capability: 30 minutes at area of 4.8m x 3.2m. Dimension: 14″ x 3.6″. Color: White.