Power Supply AC100~240V / 50 / 60Hz, RF frequency 433MHZ / 315MHZ, Supported device Android and IOS, Model RM4 PRO, Connectivity Technology Infrared / WiFi（2.4GHZ ONLY）, Support IR / RF / WiFi.
Price history, coupons and price alert are available on this page. Let’s see what best price is ATM.
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 code price check (UTC time):
Banggood
Banggood warehouse is located in China. We have found one coupon for this product!
Link: Banggood product page
1. ($29.75): 2203ActiesNL
apply it in your 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): BGd29187, 6GSGIT, BGd5a3e8, BGD11065, BGB5076, BGa23349, ADMITAD2212, BGSmart6, 8BGwbg2204
(probably won’t work, but you can try them out)
Price history and price alert
Price history (for all/most countries) for Broadlink RM4 Pro Smart Remote Control With HTS2 is here. The lowest price was: $29.43.
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)).