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 (146.56 USD): Drones6
Coupon (146.56 USD): CouponsDE
Coupon (146.56 USD): 00c906
(CouponsFromChina.com tip: this code has to be applied in your cart 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): BGV91315, AFfbG10, BGMPB2020, BGAFF10OFF, bGhOnEy10, BGWLT12, BGdragonBoat, BGSS10%SW, bgshOOp10, BGheli10, BgoFErTaSchInA10, BgcLuBofErtA10, BGCuponation10, BGDAVIS, BGHONEY2110, BGMATT7, BANGGOODSD, 6GSGIT
(there’s a little possibility that old coupon will work)
Price history and price alert
Price history (for all/most countries) for WLtoys V913 RC Helicopter RTF is here.
Price records source(s): Banggood
Click on image to enlarge.
You can set price alert (for Banggood).