Basically copy coupon, view price history or create e-mail price alert. You probably want to know what is the best price?
Fabric 100% polyester, Product Color Black/Blue, Product Name Electric heating vest, Product Size S-4XL, Product features Intelligent triple control/three levels of heating, Suitable for Outdoor work/outdoor sports/home/office
Aliexpress
I could not find it on Aliexpress. Click here to search by yourself.
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
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): BG578c3f, BG8OFFCOUPON, BGab75e8, TTBLACK5, BG589b2e, BG6f857c, BGBFDAY8
(these codes were not working in latest coupon update, but you can check them out anyway)
Price history and price alert
Here is price history (for all/most countries) for TENGOO HJ-11 Unisex 11 Areas Heating 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)).
What is best battery for HJ-11 jacket?