Aliexpress
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Here are coupons that you can use.
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – Xiaomi Universal IR Remote Controller [EU] (-3 USD)
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (17.99 USD): BgcLuBofErtA10
Coupon (18.99 USD): 13f142
Coupon (18.99 USD): BGSMOFF
(CouponsFromChina.com tip: put item in your cart and apply coupon code there 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): 6OFFXM, 22XMIR, affiliate6, BG18AQIR, aff7off, BGP117IR, BGaDmITAd, bgchinafest, BGBFAFF2019, BGCITYADS2019, bGpAnDacHeCk, 2020CNY, BGAQ20, BGSAMH, bGhOnEy10, BGSM15, bgshOOp10, BGSAMRTH, BGELIG0920
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – Xiaomi Universal IR Remote Controller [EU] (-3 USD)
Price history and price alert
Price history (for all/most countries) for Xiaomi Universal IR Remote Controller is here.
Price records source(s): Gearbest, Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).