Power: 0.5W, Material: ABS and TPU, Channel: 8, Frequency range: 462 – 467 MHz, Privacy code: 38, Battery: 4 AAA batteries (not included), Communication range: 1 – 3km (max. 5km open field).
Get coupons, create price alert or check price history out! 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):
.JPG "Best price for 2 Pcs. T-388 0.5W Radio Walkie Talkie discount")
Banggood
Banggood warehouse is located in China. There is one coupon available! Pretty cool, huh?
Link: Banggood product page
1. ($20.78): BGd0b05d
apply it in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): bGhOnEy10, BGdragonBoat, BGSS10%SW, bgshOOp10, BgoFErTaSchInA10, BGELIG0920, BgcLuBofErtA10, BGAFF10OFF, BGCuponation10, 13f142, BGHONEY2110
(there’s a little possibility that old coupon will work)
Price history and price alert
Price history (for all/most countries) for 2 Pcs. T-388 0.5W Radio Walkie Talkie is here. The lowest price was: $8.99.
Price records source(s): Gearbest, 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)).