You can create price alert here, copy coupons and view price history. You probably want to know what is the best price?
14, 000 times/min high-frequency tapping, 350W, UV lamp power: 6W
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.
Link: Banggood product page
1. ($144.69): BGAHPU13
2. ($151.34): Cuponation9
3. ($156.33): BG00c906
put item in your cart and apply coupon code there after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): 20OFFJV11, 10earth, 2019SPEDM, aff7off, bgchinafest, Email5, bGpAnDacHeCk, 7bcdf9, BGJM11, BGJMC11, BGHOMEAPP, bgshOOp10, BGHome15%, BGHOMEAPP13, BGCZJM11, BGHOMEA13, BGCZJMV11, BGCZJMY11, BGCZBFJV1, BGCZJMYV, BGCZJMMYUV, BGCZJMUC7, BGCZJMUYTCD, BGCZJMY5A, 13f142, BGCZCRBVP, BG10OFFAFF, BGCZJMYMA, BGCZMMU5, BGCZMMC, BGwhielabel, BGMMYCV, BG10OFFAFF1, BANGGOODSD, 6GSGIT, 00c906, BGCZMUV3, ADMITAD2212, BGa6cb0b, BGCityads10, BGhomeGR01, Terence, Tabby20, 2203ActiesNL, BG1efeb0
(these coupons are old, so probably won’t work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – Xiaomi Youpin JV11 Vacuum Cleaner [EU] ($-3)
Price history and price alert
Do you need price history chart (for all/most countries) for Xiaomi Youpin JV11 Vacuum Cleaner? There we go.
Price records source(s): Gearbest, 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)).