Connectivity Technology Infrared / WiFi（2.4GHZ ONLY）, Model RM4 PRO, Support IR / RF / WiFi, RF frequency 433MHZ / 315MHZ, Power Supply AC100~240V / 50 / 60Hz, Supported device Android and IOS.
Just check coupons out (with price alert and history). Do you want to know what the best price is?
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 price update (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($42.76): BGJUNEGSG9
2. ($43.23): hoNEYbGdeAlS
apply code in your basket (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): BGd21f8f, 6GSGIT, BG3f30ef, BGD11063, BGB5074, BG949394, BG6f2068, ADMITAD2212, BGSmart6, BGAlerabat1, 8Couponsde, MVC8SPRING, 8BGwbg2204, tRaDetRaCKeR, 8wEbgaInS5
(these codes were not working in latest coupon update, but you can check them out anyway)
Price history and price alert
Price history (for all/most countries) for Broadlink RM4 Pro Smart IR/RF Remote Control is here. The lowest price was: $28.99.
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)).