For this 2500W handheld steam cleaner, what functions or designs have we upgraded? Increased Water Tank Capacity: To reduce the frequency of refilling, we upgraded the water tank capacity from 1L to 1.2L, which makes it possible for the cleaning steamer to run for more than 1 hour.Enhanced Convenience: To make cleaning more convenient, the spray handle is designed with 3 buttons, allowing users to easily adjust the steam output levels or turn on/off the steam cleaner during use.Additional Accessories: To meet more diverse cleaning needs, we added 2 new accessories: a flat scraper and a towel cover. The flat scraper is ideal for cleaning glass windows, while the scraper combined with the towel cover can be used to clean all types of fabric and leather sofas as well as car seats. Additional Accessories (Flat Scraper & Towel Cover) are Added for More Diverse Cleaning Needs Flat Scraper: For glass windowsFlat Scraper and Towel Cover: For fabric and leather sofa or car seatsExtension Nozzle: For deep cleaning in crevices and cornersSmall Nylon Brush: For washroom, grout and tiles, etc.Large Nylon Brush: For cleaning large areas such as walls, countertop, etc.Metal Brush: For all metal surfaces such as range hoods, gas stoves, etc.