About this item: 【High ???????????????? ??????????????, ?????????????????? ??????】Featuring an upgraded brushless motor, designed around increased suction power, with 180,000 rpm for more suction, less noise and longer battery life. 3 levels of suction adjustment increase suction power to 50kPa, removing dust and dirt in one go, making cleaning hard floors and carpets very efficient. 【55 ?????????????? ???????????? ??????????????】Thanks to the built-in BMS intelligent management system with a dual chip protection board, the cordless vacuum cleaner rechargeable has a longer lifespan, effectively avoiding battery heating, undercharging, and power drains faster problems. 55 minutes in minimum mode and 18 minutes in maximum mode, the batteries can be removed and replaced at the touch of a button and you can purchase extra batteries for longer run times. 【CLEAN AND STEAM FLOORS IN ONE STEP】 – this advanced cleaner automatically adjusts suction power, brush roller speed, and water flow for