Just check coupons out (with price alert and history). What is best price? Model: TK – 718, Frequency Range: 136-174MHz, Storage Channel: 199, Function: FM radio, Power: 5W, Talk Range: up to 10km, Low battery alert, Battery save, Powered by 7.2V 1800mAh rechargeable Li-ion battery pack
Aliexpress
There’re some similar (or not) items on Aliexpress
Price history (for all/most countries) for TK-718 VHF 136-174MHz 5W Walkie Talkie [Fast-08] is here.
Price records source(s): Gearbest 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)).