Basically copy coupon, view price history or create e-mail price alert. What is best price?
Capacity: 600 ml, Input voltage: 220V – 50Hz / 110V – 60Hz, Consumption power: 30W / 50W
Aliexpress
I could not find it 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. As you can see I didn’t find any active coupon for this product right now…
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): 15offda968, 2019SPEDM, bgssaff9, BGAPPLIANCE, BGLSBRD, BGaDmITAd, BGBFAFF2019, BGCITYADS2019, BG9NY, 2020CNY, BGVDay10%off, BGHOMEAPP, BGMPB2020, bGhOnEy10, BGLDA9, BGHCLE15, BGLKPCF, BGLKGD, bgshOOp10, BGHOMEAPP13, BGHOMEA13, BG11SHOP, BGCNBGFDEA, 13f142, BG10OFFAFF, BGwhielabel, BG10OFFAFF1, BANGGOODSD
(these coupons are old, so probably won’t work)
Price history and price alert
Here is price history (for all/most countries) for Loskii DA-968 Ultrasonic Cleaner.
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)).