1.Reasonable Capacity, Practical and Convenient With a 55ml cleaning liquid capacity, it meets the daily window cleaning needs, eliminating the need for frequent cleaning liquid refills, saving time and effort. The 80ml dirty water collection capacity can hold a relatively large amount of dirty water, reducing the number of times to dump the dirty water and making the cleaning process more smooth. 2.Long - lasting Battery Life, Stable Operation It has a 30 - minute working time. One charge can complete the cleaning of multiple windows, with strong battery life to meet the needs of large - area window cleaning in the family. The input voltage is 100 - 240V~50/60Hz, adapting to a variety of voltage environments around the world, and can be used stably whether at home or traveling. 3.Moderate Suction, Effective Cleaning The power is about 1kpa, with moderate suction. It can effectively suck up water stains and dust on the window glass without damaging the glass. Combined with the unique nozzle design, it fits closely to the glass surface, easily coping with windows of various shapes and sizes to ensure dead - corner - free cleaning. 4.Battery Level Display, Clear at a Glance Equipped with 4 LEDs to indicate the battery level, you can clearly understand the remaining battery power at any time, and prepare for charging in advance to avoid sudden power outages during cleaning. The noise is less than 85dBA, running quietly without disturbing others. You can complete the window cleaning work in a comfortable environment without affecting family members and neighbors. 5.Multifunctional Design, Flexible Disassembly It has a 3 - in - 1 function to meet the needs of different cleaning scenarios. It can not only clean windows but also be used for cleaning smooth surfaces such as mirrors and tiles. The detachable brush head and water tank are convenient for cleaning and maintenance, keeping the device clean and hygienic, extending the service life, and making it more flexible and convenient to use.