According to my DB the lowest price is $105.2 for Retevis RT3S DMR Digital Walkie Talkie 5W (in Banggood). Price history, coupons and price alert are available on this page. What is the best price?
Retevis RT3S DMR Digital Walkie Talkie VHF UHF GPS APRS 5W Ham Radio Stations Walkie-talkies Professional Amateur Two-Way Radio
Latest coupon and price update (UTC):
Banggood ($105.20)
Banggood warehouse is located in China. But wait a sec… Is it a good price? Maybe there’re no more promotions for this item, because current price is higher than average (which is equal $97.50) We have found one coupon for this product!
Link: Banggood product page
Price without coupon: $114.35
1. ($105.20): BGALL8
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): BGCAPITALOS8, BG8FORMULAMX, BGBFDAY8, BGNEWYEAR8, BGSPRING8OFF, BGHONEYSP, BGESJY8
(these coupons are old, so probably won’t work)
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Do you need price history chart (for all/most countries) for Retevis RT3S DMR Digital Walkie Talkie 5W? 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)).