You can create price alert here, copy coupons and view price history. Do you want to know what the best price is?
Rated Power 60W, Battery Capacity 2000mah, N.W 485g, Usage Time About 25-28 Minutes, Material Fireproof Abs+Pc, Color Chinese Red/Carbon Grey Blue, Size 69.5*57.5*265mm, Name V Mini Portable Vacuum Cleaner, Brand AutoBotx ROCK, Charging Time About 3 Hours, Suction 4200Pa, Model RST1072, Dust Box Capacity 100ml, Input Dc5V=2A
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 code price check (UTC time):
Banggood
Banggood warehouse is located in China. I’m afraid that there’s no working coupon in Banggood.
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BG75c3d8, 13f142, BG10OFFAFF1, BANGGOODSD
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Price history and price alert
Here is price history (for all/most countries) for AutoBot ROCK RST1072 V Mini Vacuum Cleaner 4000Pa 60W.
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)).