M571 Robot Vacuum Cleaner sells on Amazon use code 5WDL9V3X and save. I think the price is very good. Please read some of the reviews and see what people thought of the product. Check how you might qualify for a free shipping offer if available.
Convertible Vacuuming and Sweeping: Lefant M570 has an interchangeable dustbin for vacuuming and water tank for mopping; Swap between the two to tackle all your floor cleaning needs
Voice and APP Controls: The robot works with Alexa and Google Assistant voice commands. Download Lefant Life App, available on iOS and Android 4.0 or above, access to direction control, schedule cleaning, choose the cleaning modes, real-time monitor, adjust the suction power, etc. Support OTA firmware.
Max Mode Power: Increase suction power by up to 2000Pa for particularly troublesome messes
Free Move Technology: Anti-collision sensors avoid furniture damages, It can cross over things lower than 0.78inch, prevent getting stuck in narrow spaces under furniture, and easily pass through bed sheets or curtains. Anti-drop sensors prevent vacuum from falling. Wall sensor sweeps around corners and along the walls.
Up To 150 Minutes Runtime: A longer battery life for even more cleaning Auto return & charging means your robot will always be ready to clean