You can get BNF S-FHSS with 3 for 310.49 USD using coupon code (in Banggood). Price history, coupons and price alert are available on this page. You probably want to know what is the best price?
Latest price update (UTC time):
Banggood (310.49 USD)
Banggood warehouse is located in China. As you can see I didn’t find any active coupon for this product right now… Is it a low price? Hmmm, price is higher than average (which is 240.74 USD right now), so better set price alert down below…
Link: Banggood product page
Price: 310.49 USD
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGb2a8bb, BGc45a1d, BGb01d4b, BGJPE180, BG99E180BNF, BG860cf7, BG54adae, BGE180109, BG8bd9e0, BG0f28b8, BG527440, BGheli05, BGH5E180, CouponsDE, BG1d4ef1, 2022ACTIESNL, BGRCEachine, Tabby20, BGheli3, BG74a867, BG1d46dd, BGa94566, 8BGwbg2204, tRaDetRaCKeR, BG32d0ca, BGd14336, BG8RCToy, hoNEYbGdeAlS, BGRCT10, BG6d8020, BGToys8, JanBGCoupon8, BGMatt2022, BGe5f76a, BGMARCHSALE, BGCAPITALOS8, BGCOUPERT8, BG8FORMULAMX
(you can check these old coupons out, but these probably won’t work)
Aliexpress
Click here… to search for Eachine E180 3D6G RC Helicopter BNF S-FHSS with 3 Batteries on Aliexpress
Here are coupons that you can use.
Price history and price alert
Check out price history chart (for all/most countries) for Eachine E180 3D6G RC Helicopter BNF S-FHSS with 3 Batteries.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).