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.
Just check coupons out (with price alert and history). Let’s see what best price is ATM.
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
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
coupon code has to be applied in shop’s cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGe2a7f0, BGMOTO478, BGb9d6f4, BGf4953d, BGf2ab64, ADMITAD2212, 2022ACTIESNL, Tabby20
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Price history and price alert
Here is price history (for all/most countries) for HYSNOX HY-02 1000m Motorcycle Helmet BT Intercom. The lowest price was: $53.99.
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)).