When I was updating this page the price was $26.99 for TENGOO HV-04A Heating Vest (in Banggood). You can create price alert here, copy coupons and view price history. Best price?
TENGOO HV-04A Unisex 4 Places Heating Vest 3-Gears Heated Jackets USB Electric Thermal Clothing Winter Warm Vest Outdoor Heat Coat Clothing – 6XL
Latest price update (UTC time):
Banggood ($26.99)
Banggood warehouse is located in China. Coupons for TENGOO HV-04A Heating Vest? Nope, there’re no coupons in Banggood. You probably want to know if this is a good price. Maybe there’re no more promotions for this item, because current price is higher than average (which is equal $18.32)
Link: Banggood product page
Price: $26.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Aliexpress
I could not find it on Aliexpress. Click here to search by yourself.
Here are coupons that you can use.
Price history and price alert
Check out price history chart (for all/most countries) for TENGOO HV-04A Heating Vest.
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)).