APP Name BroadLink, Infrared Range ≤8m, Standby Power ≤0.69 W, Communication Mode WIFI 802.11b/g/n (2.4Ghz), Input Current 750 mA, Gross Weight 100g, Support OS IOS 9.0 / Android 4.0 and above, Model RM4 Mini, Size 8.5*5*6.5cm, Net Weight 80g, Infrared Frequency 35Khz, Infrared Direction Multi-direction infrared, Working Humidity ≤85%, Input Voltage DC5V, Brand BroadLink.
Just check coupons out (with price alert and history). What is the best price?
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($22.99): tRaDetRaCKeR
2. ($22.99): 8wEbgaInS5
3. ($23.24): 2203ActiesNL
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 and https://couponsfromchina.com/short/i1u
Old coupons (from the oldest to the newest): BGe446b3, 13f142, BG9e1984, BGcd5218, BG82504, BG83104, BG090804, BG035cd2, BG1999b1, BGD11062, BGB5073, BGc2705f, BGbabab0, ADMITAD2212, BGSmart6, 8Couponsde, MVC8SPRING, 8BGwbg2204
(these coupons are old, so probably won’t work)
Price history and price alert
Check out price history chart (for all/most countries) for BroadLink RM4 Mini IR Smart Home Universal WIFI Remote Controller. The lowest price was: $15.99.
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)).