Lithium battery: The lithium technology ensures sustained performance until the last minute without loss of power. Dirt collection container: Easily removable at the push of a button and dishwasher safe. The wide suction nozzle effortlessly picks up coarser dirt such as pet food or muesli. Semi-transparent, large dirt collection container. Easily detachable dirt collection container - filter and dirt collection container can be cleaned easily and hygienically. Filter: Hygienic filter technology with replaceable and washable filter. Ergonomics: Ergonomic design for comfortable use.