$520.00 – Flysky Noble NB4 Pro+ 2.4GHz AFHDS 3 18CH Radio Transmitter HVGA 3.5inch 320*480 LCD Touch Screen w/ FGR8B & FGR4B Receiver – Titanium.
$520 – that is current price with coupon for Flysky Noble NB4 Pro+ 2.4GHz AFHDS 3 18CH RC Transmitter (in Banggood). Go down and check coupons out. Remember to check price history if it is available. What is best price?
Latest coupon code price check (UTC time):
Banggood ($520.00)
Banggood warehouse is located in China. Too bad there’s no coupon right now in Banggood. Is it expensive? From what I can see this price is higher than average price ($469.00).
Link: Banggood product page
Price: $520
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGESJY8, BGALL8
(these codes were not working in latest coupon update, but you can check them out anyway)
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.
Price history and price alert
Here is price history (for all/most countries) for Flysky Noble NB4 Pro+ 2.4GHz AFHDS 3 18CH RC Transmitter. The lowest price was: $469.
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)).