Hi Sir/MadamUNSUBSCRIBE How are you? We are a direct facotry of Vacuum Sweeping Robot here in Shenzhen, China. Pls kinldy allow me to introduce our A7S with gyroscope navigation+electric water tank which is our hottest seller. The main features of A7S is as below 1. gyroscope navigation with tracking map and better route plan to cover the room better 2. electric controlled water tank + dust box 2 in 1, do not need to change box 3. remote control + wifi app (Tuya Smart) 4. self-charging function 5. rolling brush + BLDC motor, make the suction power very strong, can suck small screws 6. voice prompt You can check the introduction video from the below youtube link https://youtu.be/rAEL1NpKAxw And below is the video of it sucks the small screws https://youtu.be/b_VhFttq0sE The price is very competitive, pls kindly check and feel free to contact me if you have interest on it. Thanks! Best regards Jacky Luo ------------------ Add: 3/F, Baidadeli Industrial Park, #4 Anle Road, Anliang Community, Yuanshan Street, Longgang District, Shenzhen, Guangdong Province M.P. (Whatsapp/Wechat): +86-13428923936 Email: jacky@szebo.com Website: http://www.ebosz.com/ Skype: jacky1985417