The 12-Air-Cyclone-System prevents dirt from settling through centrifugal force, ensuring consistently high suction power. The combination of powerful airflow and electric brush optimizes dirt pickup, even for heavy dirt particles. Lithium technology provides sustained performance until the last minute without loss of power. With Lithium Eco Smart charging technology, the battery charges in less than 4 hours, after which the charger switches to maintenance mode; this protects the battery cells, ensures maximum lifespan, and saves energy. Handheld vacuum cleaner. Also usable as an upright vacuum for efficient floor cleaning. The turbo brush picks up stubborn and coarse dirt as well. A 4-stage LED ring indicates the current charge level and thus the remaining runtime.