Price history, coupons and price alert are available on this page. What is best price?
Suction: 8000Pa, Material: Plastic + Metal, Charging Time: about 3-5 hours, Plug: EU/AU/US, Use Time: about 20-40 minutes, Battery Capacity: 2200mAh, Power: 130W, Color: Black+Red, Dust Cup Capacity: 0.8L, Battery Type: Li-ion battery, Voltage: 100-240V 50/60Hz
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):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($148.75): BGCAPITALOS8
2. ($148.75): BGCOUPERT8
coupon code has to be applied in shop’s 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): BGCZEKHCA, BGHOMEA13, BG10OFFAFF, BGwhielabel, BGCZEK7, 13f142, BG10OFFAFF1, 00c906, BG00c906, MVC8SPRING, pROMo8cuPoN, hoNEYbGdeAlS, BGHAP13, DealBGimpact, Cuponation9, BGAHPU13, BGeaf456, TTBLACK5, BG589b2e, JanBGCoupon8, BGSaleFeb8, BGSaleAD, BGMARCHSALE, BGAUGUST8
(there’s a little possibility that old coupon will work)
Price history and price alert
Price history (for all/most countries) for ZEK Vacuum Cleaner 8000Pa is here.
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)).