Motor Type: Brushless Motor, Satellite System: GPS, Sensor: Optical Flow, Sonar, Max Speed: 16m/s (horizontal), Flying Time: 20-25min, Battery: 4480mAh 15.2V 68Wh 4S LiPo (included), Detailed Control Distance: about 4000m.
Basically copy coupon, view price history or create e-mail price alert. You probably want to know what is the best price?
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 price update (UTC time):
Price history and price alert
Do you need price history chart (for all/most countries) for DJI Phantom 3 SE Quadcopter RTF? There we go. The lowest price was: $449.25.
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)).