$22.99 – XKJ K13 MAX WiFi FPV with HD Dual Camera Altitude Hold Headless Mode Foldable RC Drone Quadcopter RTF – Black With Dual Camera Two Batteries.
I have checked all old coupons and price is $22.99 for XKJ K13 MAX Drone RTF with 2B (in Banggood). Just check coupons out (with price alert and history). Let’s see what best price is ATM.
Latest coupon code price check (UTC time):
Banggood ($22.99)
Banggood warehouse is located in China. I’m afraid that there’s no working coupon in Banggood. Good or bad price? Hmmm, price is higher than average (which is $20.99 right now), so better set price alert down below…
Link: Banggood product page
Price: $22.99
Additional Banggood coupons: first page and second page
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
Do you need price history chart (for all/most countries) for XKJ K13 MAX Drone RTF with 2B? There we go. The lowest price was: $19.99.
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)).