ATM you can buy 3 Gears Electric Heating Scarf for $12.99 (in Banggood). Price history, coupons and price alert are available on this page. What is best price?
Latest coupon code price check (UTC time):
3 Gears Electric Heating Scarf Adjustable Intelligent Winter Warm USB Rechargeable Neckerchief Plush Collar for Men’s and Women’s – Black
Banggood ($12.99)
Banggood warehouse is located in China. Coupons for 3 Gears Electric Heating Scarf? Nope, there’re no coupons in Banggood. I think you want to know if the price is good. Well, this price is higher than average price ($11.99)
Link: Banggood product page
Price: $12.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGTYFRI4, BGTYHS02
(I don’t think these’re gonna work, but you can try ’em out anyway)
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Price history (for all/most countries) for 3 Gears Electric Heating Scarf is here.
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)).