Aliexpress
There’re some similar items on Aliexpress in my database. There may be some other items though.
| Image | Product (link) | Price | Coupons |
|---|---|---|---|
 |
ENCHEN Electric Shaver 3D Blackstone 3 | 14.30 USD | – |
 |
Enchen BlackStone 3 Electric Shaver | 14.30 USD | – |
 |
ENCHEN MINT3 Water Flosser | 18.90 USD | – |
 |
Enchen BlackStone 3 Pro Electric Shaver | 19.45 USD | – |
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. You can get coupon down below.
Link: Banggood product page
Coupon (16.68 USD): BGHealth06
(CouponsFromChina.com tip: this code has to be applied in your cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGKLRO6, bGhOnEy10, BGXCZZAV24, BGZAXAA24, BGHOMEA15%, BgcLuBofErtA10, BGAFF10OFF, BGBTJUW2, BGCuponation10, 13f142, BG10OFFAFF, BGwhielabel, BG10OFFAFF1, BANGGOODSD
(these coupons are old, so probably won’t work)
Price history and price alert
Do you need price history chart (for all/most countries) for ENCHEN 3 in 1 Electric Toothbrush? There we go.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).