Aliexpress
Click here… to search for Xiaomi Xiaoai Portable Speaker XMYX07YМ on Aliexpress
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (23.55 USD): BGBRPL2
Coupon (23.55 USD): BGHOTSHOP15
(CouponsFromChina.com tip: apply code in your basket (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): 13f142, BGSS10%SW, BGLOAC1, 451feb, BGBuscape01
(probably won’t work, but you can try them out)
Price history and price alert
Here is price history (for all/most countries) for Xiaomi Xiaoai Portable Speaker XMYX07YМ.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).