Aliexpress
Click here… to search for Xiaomi Yuemi MK06C Cherry Red Switch Keyboard on Aliexpress
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China. As you can see I didn’t find any active coupon for this product right now…
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): 9fab40, e2bcea, ityuemikb, 502C6B, TTxBG10, e18b44, BG3CSUM, AFfbG10, BGCPP014, affbg10, BGBFAFF2019, BGCITYADS2019, Email5, BGMPB2020, BGAFF10OFF, bGhOnEy10, BGdragonBoat, BGSS10%SW, bgshOOp10, BgoFErTaSchInA10, BgcLuBofErtA10, BGHONEY2110, 13f142
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Price history and price alert
Here is price history (for all/most countries) for Xiaomi Yuemi MK06C Cherry Red Switch Keyboard.
Price records source(s): Gearbest, Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).