Hi Sir/Madam Could you pls kindly check our below latest Smart Robot Vacuum. It is very cheap price and with anti-drop function, and 1 of this tiny thing can clean a room max to 120㎡. So pls feel free to contact me for the details if you have interest on it, thanks! Hope to hear from you soon! Best regards Jacky Luo ------------------ EBO Technology Co., Ltd. 3rd Floor, Building #14, Paibang Industrial Park, 228 Industrial Zone, Silian Community, Henggang Street, Longgang District,Shenzhen, Guangdong Province, China.Postal Code: 518115 Mob: +86-13428923936