OVERVIEW: Dreame T30 cordless vacuum , the fastest brushless motor with 150,000 rpm performance; 90-min runtime detachable battery. Filtration System traps 99.97% of pollutants and allergens as small as 0.3 microns . With intelligent HD screen, easily get all the information. Self-lock button, which can release your finger during working KEY FEATURES: Intelligent HD Screen 190AW Strong Suction Power Anti-Tangle Brush Super Long Runtime