The team has developed a wireless portable car washing device specifically for urban high-rise users. It is powered by a rechargeable lithium battery and an innovative micro pump to effectively solve the power supply and water pressure problems. There is no need to plug in the power supply or connect the faucet, allowing users to achieve true freedom to wash the car without wireless constraints. The appearance of the car washing machine adopts a more home-style design, which makes the car washing machine, an industrial product full of muscular lines, rejuvenate the trend of home use. The high-value design allows users to enjoy the fun of DIY more during use. For the cleaning of the car body, under the violent 220V voltage, the damage to the car paint by the impact far exceeds the damage to the car paint in daily driving. In response to this misunderstanding, Lekong car wash machine adopts the concept of "too much is as bad as too little", adopts 22bar six-in-one nozzle, six water outlet modes, perfectly solves the operation of pre-washing, PA foaming, and rinsing, effectively washes the car while saving water resources. It meets the user's multi-scenario cleaning needs and has become a new favorite in urban home and car life.