Basically copy coupon, view price history or create e-mail price alert. You probably want to know what is the best price?
Brand TENGOO, Lining 100% polyester fiber, Colour Black, Fabric 100% polyester fiber, Waterproof rating IP3, Working temperature “LOW(Blue light): 25℃
MID(White light): 35℃
HIGH (Red light): 45℃”
Aliexpress
I could not find it on Aliexpress. Click here to search by yourself.
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($49.72): TTBLACK5
2. ($49.72): BG8OFFCOUPON
3. ($50.80): BG00c906
apply code in your basket (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): BG408078, BGfde308, BGf960c3, BG851ec9, BG78c80e, BG781593, BG233749, BG858683, BGa70837, 00c906, BG98a77f, 2022ACTIESNL, BGShoes111, BGOT666, BGaa4e68, Cuponation9, BG8ReviTrage, BGGutscheine
(probably won’t work, but you can try them out)
Price history and price alert
Here is price history (for all/most countries) for TENGOO 3-Gears 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)).