$9.99 – 480ml Thermos Bottle with Temperature Display (Banggood, Aliexpress: 480ml Smart Digital Thermos Bottle with Temperature Display 316 Stainless Steel Vacuum Insulation Smart Coffee Cup – Black (the best price with coupon)).
According to my DB the lowest price is $9.99 for 480ml Thermos Bottle with Temperature Display (in Banggood). Go down and check coupons out. Remember to check price history if it is available. Let’s see what best price is ATM.
Latest coupon code price check (UTC time):
Banggood ($9.99)
Banggood warehouse is located in China. There are no coupons for this product in Banggood. Well, is it a good price anyway? This is the best price in history according to CouponsFromChina database!
Link: Banggood product page
Price: $9.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/feV
Old coupons (from the oldest to the newest): BG260D2
(there’s a little possibility that old coupon will work)
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Do you need price history chart (for all/most countries) for 480ml Thermos Bottle with Temperature Display? There we go. The lowest price was: $9.99.
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)).