Aliexpress
Click here… to search for FullSpeed Leader 2.5SE Drone PNP on Aliexpress
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (157.89 USD): BANGGOODSD
Coupon (159.58 USD): Drones6
(CouponsFromChina.com tip: paste coupon code in your cart and click Apply after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGLeaderWK, bGhOnEy10, BGESNB30, BGdragonBoat, BGSS10%SW, bgshOOp10, BGRC902, BgoFErTaSchInA10, BgcLuBofErtA10, BGAFF10OFF, BG10RACING, BGCuponation10, 7bcdf9, BGMATT7, BGDAVIS
(these codes were not working in latest coupon update, but you can check them out anyway)
Price history and price alert
Price history (for all/most countries) for FullSpeed Leader 2.5SE Drone PNP is here.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).