You can create price alert here, copy coupons and view price history. What is best price?
Lining 100% Polyester, 3-Mode Energy saving / Comfort / Warm, Fabric 100% Nylon, Heating area 8 /00€, Product Name Black / blue, Product Name Electric jacket, Size M-4XL
Aliexpress
I could not find it 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. I couldn’t find any coupon for this product on latest product update.
Link: Banggood product page
Price: $-3
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 and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BG826400, BGdc79d1, BG871578, BG169ad4, BG98a77f, 2022ACTIESNL, BGShoes111, BGOT666, BGaa4e68, BgGoodie9
(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 8-Areas USB Electric Heated Jacket.
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)).