You can create price alert here, copy coupons and view price history. Let’s see what best price is ATM.
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest coupon and price update (UTC):
Product suction: 9000pa, Product name: Wireless car vacuum cleaner, Product Weight: 300g, Color: White /Black, Product power: 120w, Battery capacity: 5000mAh
Banggood
Banggood warehouse is located in Europe 
. I don’t know if this is a good price – number of records in my database is too low!
Link: Banggood product page
1. ($19.54): BGPTL088
2. ($20.69): BGGines
3. ($21.61): BG00c906
apply it in your 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): BG66f585, CityadsTool
(these coupons are old, so probably won’t work)
Price history and price alert
It’s a new item in our database, so I can’t create price history chart. We have saved this price in database: $18.99.
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)).