Basically copy coupon, view price history or create e-mail price alert. Best price?
1x Handheld, 1x Round Brush, 1x Warranty Card, 1x Flat Nozzle Suction, 1x Manual, 1x Ground Brush, 1x Certificate, 1x Host
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. Only one coupon available!
Link: Banggood product page
1. ($62.96): 00c906
just apply this code in your cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): PICODICOM, BGDEER05, aff7off, BGDR35, BGDX35, bgchinafest, BGDRDX1, BGDX115, bGpAnDacHeCk, BGHOMEAPP, BGHOMEAPP13, BGHOMEA13, BGAFF7OFF, BGCZDRMDX5, 13f142, BGCZDX5, BGwhielabel, BGCZPLDR5, BGCZPRDX5, BGHU0560, BGCZDESX5, BGCZRPX5, BGCZDR6, BG10OFFAFF1, BANGGOODSD
(you can check these old coupons out, but these probably won’t work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – Deerma DX115C Vacuum Cleaner [EU] ($-3)
Price history and price alert
Do you need price history chart (for all/most countries) for Deerma DX115C Vacuum Cleaner? There we go.
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)).