Aliexpress
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. There are no active coupons for this product, but the price is pretty low isn’t it?
Link: Banggood product page
Price: -3 USD
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): ADMITADBLACK, BG8OFFCOUPON, BGfb4a64, BGc2e40b, BG0c2d8e, BGd62f16, BGFEU27, BGdanOFF200, BG589b2e, BGSPW011
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Here is price history (for all/most countries) for TENGOO Electric Heating Scarf 3 Gears.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).