Basically copy coupon, view price history or create e-mail price alert. Do you want to know what the best price is?
Plug: EU Plug, Model: Pro, Language: English, Frequency: 2.4GHz, Speed: 300Mbps, Item: Wifi Signal Extender, Color: Black
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in Hong Kong. We have found one coupon for this product!
Link: Banggood product page
1. ($21.99): BG589b2e
put item in your cart and apply coupon code there after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): bGhOnEy10, BGdragonBoat, BGN702F, BGND02, BGN802S, BGN802C, bgshOOp10, BGN902H, BGN902K, BGN902A, BgoFErTaSchInA10, BGNW1CZ102, BGNQ02D, BgcLuBofErtA10, BGN02HyB, BGN02BCZ, 13f142, BGAFF10OFF, BGN02828, BGCuponation10, BGN382YB, BGN0682HK, BGRE8482, BG124473, BG8cdbaa, BGN0782JH, BGd77202, BG15th9848, BGa6a0b3, BANGGOODSD, BG76b9b2, BGAH224, BGDBZ21, BGBFC4F2, BGBFZ13, BG4830b3, BG9a4b38, 00c906, BGfeec33, BG2d656b, BG00c906, ADMITAD2212, BG4e1c85, 2022ACTIESNL, BG689479, BG1d65ef, BGb18972, Terence, BG5249f2, Tabby20, BG1021cc, BG2e83f0, BG430d01, BG38f1d7, BG54d7c0, BG9e3aba, 8Couponsde, BGd01038, BGefc7a3, BGb7f360, BG7434dc, BGa13de0, BG1a1833, BGebac6c, pROMo8cuPoN, BG815be1, BGab5ae5, BGe0a3b7, BGJUNEGSG9, BGe6196c, BG9f10b7, BG081e6d, BG545210, BGWSCYT1, BGde5d39, BG27b553, BG43aa85, BGde2f67, BG7e2bf9
(these codes were not working in latest coupon update, but you can check them out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – Xiaomi Pro 300m WiFi Repeater English Version [EU] ($-3)
Price history and price alert
Here is price history (for all/most countries) for Xiaomi Pro 300m WiFi Repeater English Version.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).