Price history, coupons and price alert are available on this page. You probably want to know what is the best price?
Battery: 1800mAh Li-ion, Audio Power: 0.4W(8R Load), Channel Capacity: 16, Operated Voltage: 3.7 V DC, Frequency: UHF 400-470MHz, Dimensions (L×W×H) (with battery, Sensitivity: -122dBm (12dB SINAD), without antenna): 118x53x29mm, Modulation Sensitivity: 8-12mV, RF Rated Power: ≤ 5W, Antenna Impedance: 50 ohm, Operated Temperature: -20°c to +50°c, Communication Distance: 3-5 km
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. Well, there is one coupon available right now.
Link: Banggood product page
1. ($48.01): BG589b2e
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/5cd
Old coupons (from the oldest to the newest): BGAFF10OFF, BgcLuBofErtA10, BGCuponation10, 13f142, BGHONEY2110, BANGGOODSD, 2022ACTIESNL, Terence, Tabby20, tRaDetRaCKeR, 8wEbgaInS5, pROMo8cuPoN, hoNEYbGdeAlS, BG8ReviTrage, BG2dd669
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Price history and price alert
Price history (for all/most countries) for 2Pcs Baofeng BF-V9 Mini Walkie Talkie is here.
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)).