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Click here… to search for XSHUAI HXSG1 Robot Vacuum Cleaner on Aliexpress
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (85.99 USD): BGSXRG
Coupon (172.97 USD): aff7off
Coupon (172.97 USD): bGpAnDacHeCk
(CouponsFromChina.com tip: this code has to be applied in your cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): 1148790, 427168, f6ed05, d85c76, 30%hld, BGXS03, PICODICOM, BGHXSG16, BGHXSG7, BGHG522, bgchinafest, BGSXHS, BGXSRS
(probably won’t work, but you can try them out)
Price history and price alert
Check out price history chart (for all/most countries) for XSHUAI HXSG1 Robot Vacuum Cleaner.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).