Power 1.5W, Cert Certification CE / RoHS / FCC, Chagring Time 1 Hour, Model AURORA-T2, Bristle Type Mouthguard Soft Bristle, Size 250*26*26mm/9.84*1.02*1.02in, Brand Enchen, Waterproo IPX7, Color Black / White, Gear 9-gear Adjustment.
Basically copy coupon, view price history or create e-mail price alert. What is the best price?
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
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. I couldn’t find any coupon for this product on latest product update.
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!
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGHECARE1, BG1dc547, BGXPAP283, BG4ee866, BGHOM052, BG2f2e3f, BG63c219, BG32931b, 9OFFSUMMER, BGc2a497, Cuponation9, BG75597c, BG544955, BG2d46d5, BG589b2e, BG0328g
(these coupons are old, so probably won’t work)
Price history and price alert
Check out price history chart (for all/most countries) for Enchen AURORA-T2 Sonic Electric Toothbrush. The lowest price was: $16.37.
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)).