Aliexpress
There’re some similar items on Aliexpress in my database. There may be some other items though.
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (32.99 USD): BGMAY079
Coupon (44.99 USD): BG10OFFAFF
Coupon (44.99 USD): BGwhielabel
(CouponsFromChina.com tip: apply it 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): BGBG2PCS2, BG2PCS2
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Price history (for all/most countries) for 2 pcs. Oclean F1 Sonic Toothbrush is here.
Price records source(s): Banggood
Click on image to enlarge.
You can set price alert (for Banggood).