Just check coupons out (with price alert and history). What is the best price?
Receive A Cell Phone Call Automatically Support, Talk Time Phone up to 28 hours, Standby Time Up to 300 hours, bluetooth Operating Range Up to 10m for cellphones, Call out/answer/reject/hang up Support, Intercom up to 28 hours, FM Radio Function Support, Charging Time Rechargeable 900m AhLithium Polymer Battery3 hours, Battery Type Rechargeable 900m AhLithium Polymer Battery, For Helmet Type Full/half/open face, bluetooth Version V3.0+EDR, Two Intercom Communication Range 900-1000 meters
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($65.09): Terence
2. ($65.09): 2203ActiesNL
3. ($65.79): BG00c906
just apply this code in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGe2a7f0, BGMOTO478, BGb9d6f4, BGf4953d, BGf2ab64, ADMITAD2212, 2022ACTIESNL, Tabby20
(these coupons are old, so probably won’t work)
Price history and price alert
Price history (for all/most countries) for HYSNOX HY-02 1000m Motorcycle Helmet BT Intercom is here.
Price records source(s): Banggood
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)).