ATM you can buy S-FHSS with 3 for 223.99 USD (in Banggood). Price history, coupons and price alert are available on this page. You probably want to know what is the best price?
Latest coupon and price update (UTC):
Banggood (223.99 USD)
Banggood warehouse is located in China. Too bad there’s no coupon right now in Banggood. Good or bad price? Awesome! This price is the best in CouponsFromChina database!
Link: Banggood product page
Price: 223.99 USD
223.99 USD – This is the best price ever noted in my database!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BG3dc130, 00c906, BGE1500, BGEachine10, BGbb9cb6, BGRCEachine, BGheli010, BGAlerabat1, BG8ca4e9, BGheli3, BG57a193, BGd3f5e3, BG6f2070, BG069174, BGb0ec6b, BG3463ba, BG75a717, BGRCT10, BGfe0919, BG772e24, BGToys8, JanBGCoupon8, BGSaleAD, BGMatt2022, BGMARCHSALE, BGCAPITALOS8, BG8FORMULAMX
(probably won’t work, but you can try them out)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – Eachine E150 2.4G 6CH 3D6G Brushless RC Helicopter RTF with 2 Batteries (218.99 USD)
Aliexpress
Click here… to search for Eachine E150 3D6G RC Helicopter RTF FUTABA S-FHSS with 3 Batteries on Aliexpress
Here are coupons that you can use.
Price history and price alert
Here is price history (for all/most countries) for Eachine E150 3D6G RC Helicopter RTF FUTABA S-FHSS with 3 Batteries.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).