Aliexpress
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China. CouponsFromChina software could not find any coupon for this product in 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): Brand2, aff7off, bgssaff9, BGMIB2, AFfbG10, TS15prime, TISPrime01, Tools1, Tools3, BGCITYADS2019, BG111BB, BG2020NS, BGMPB2020, BG2MFC, bGhOnEy10, BGdragonBoat, BGSS10%SW, BGEES11, BGeLt15, BgcLuBofErtA10, BGAFF10OFF, BGCuponation10, 13f142, BGHONEY2110
(these coupons are old, so probably won’t work)
Price history and price alert
Price history (for all/most countries) for Xiaomi Mijia Power Strip 2 Sockets is here.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).