The ActiveWater with 4.0 star energy & 5.0 star water: Perfect results with particularly low energy and minimal water consumption. 4.0 star energy & 5.0 star water rating: High energy efficiency and low water consumption. WhisperQuiet: really quiet operation at only 44 dB. RackMaticPlus: 3 stage height-adjustable upper basket for even greater load flexibility. VarioSpeed: The same great washing and drying results in up to half the time. AquaStopPlus: 24/7 anti-flood protection. Guaranteed.