Aliexpress
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China. There is no active coupon in my database right now (for Banggood).
Link: Banggood product page
Price: -3 USD
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGlweicii, BGXM27, BGJUICEPL, BGOD1, AFfbG10, affbg10, BGDQ2799, BGdragonBoat, BGCAMP01, bGhOnEy10, BgcLuBofErtA10, BGZPBC15, BGTY704CP, BGCuponation10, BG10OFFAFF, BGwhielabel, 13f142, BG10OFFAFF1, BG4d9120, BGAlerabatod
(these coupons are old, so probably won’t work)
Price history and price alert
Here is price history (for all/most countries) for Xiaomi Mini 280ml Juicer.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).