You can create price alert here, copy coupons and view price history. Let’s see what best price is ATM.
Operating Voltage 7.4V, Waterproof IP68, Battery capacity 2800mAh, Frequency Band 136-174MHZ/400-480MHZ, Model UV-9R PRO Walkie Talkie, Theoretical communication distance 1-50km, Number of channels 16 /00€, RF Output Power 20W, Weight 550g, Brand Baofeng
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 and price update (UTC):
Banggood
Banggood warehouse is located in China. I’m afraid that there’s no working coupon in Banggood.
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Old coupons (from the oldest to the newest): BGd0b05d, BG8fd120, BG93d487, BG530124, BG00c906, 2022ACTIESNL, Tabby20, 2203ActiesNL, 8Couponsde, MVC8SPRING, 8BGwbg2204, tRaDetRaCKeR, 8wEbgaInS5, pROMo8cuPoN, hoNEYbGdeAlS, BGJUNEGSG9, DealBGimpact, Cuponation9, 9OFFSUMMER, BG8OFFCOUPON
(you can check these old coupons out, but these probably won’t work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – Baofeng UV-9R PRO Walkie Talkie [EU] ($-3)
Price history and price alert
Do you need price history chart (for all/most countries) for BAOFENG UV-9R Pro Walkie Talkie? There we go.
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)).