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 (48.75 USD): 7d18f7
Coupon (48.75 USD): BGAFF10OFF
(CouponsFromChina.com tip: coupon code has to be applied in shop’s 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): BGXMVR, AFfbG10, 502C6B, BGBFAFF2019, BGCITYADS2019, BGVDay10%off, bGhOnEy10, BGSS10%SW, bgshOOp10, BgoFErTaSchInA10, BgcLuBofErtA10
(there’s a little possibility that old coupon will work)
Price history and price alert
Do you need price history chart (for all/most countries) for Xiaomi VR Remote Game Controller? There we go.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).