Fuselage length: 420mm, Model: A100, Battery Size: 3.2 * 2 * 0.7cm, Airplane battery: 3.7V 250mah Li-Po Battery, Wingspan: 340mm, Frequency: 2.4GHz, Control Distance: about 200m, Battery Weight: 8g, Flight time: about 7-8 minutes, Height: 105mm, Transmitter battery: 4 * AA Battery(not included), Flying Weight: 65g, Charging time: 30 minutes.
You can create price alert here, copy coupons and view price history. 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 and price update (UTC):
Banggood
Banggood warehouse is located in China. There is one coupon right now! Check this out.
Link: Banggood product page
1. ($35.99): AFfbG10
coupon code has to be applied in shop’s 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): a7e0ec, 502C6B, 8b498c, TTxBG10, bgssaff9, BGXK, BGAIRP12, BGOTC20
(there’s a little possibility that old coupon will work)
Price history and price alert
Check out price history chart (for all/most countries) for XK A100-SU27 RC Airplane. The lowest price was: $31.99.
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)).