You can create price alert here, copy coupons and view price history. Best price?
Waterproof Grade IPX7 Grade Waterproof, Brand Lenovo, Working Power 2W, Brush Handle Body Integrated PC, Continued Space 60 Days, Product Function 12-speed Condition, Voltage DC 3.7V, Category Magnetic Levitation Sonic Vibration, Rated Input 5V1A, Charging Time About 3 Hours
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. Sorry, but there’s no price history in my database.
Link: Banggood product page
1. ($29.44): BG75597c
2. ($32.56): BG00c906
put item in your cart and apply coupon code there 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): BGJUY294, BG10OFFAFF1, BGOCXP184, BANGGOODSD, BGHealth06, 00c906, BGHealth10D, 2022ACTIESNL, BGHB218, 2203ActiesNL, Cuponation9
(these codes were not working in latest coupon update, but you can check them out anyway)
Price history and price alert
There is only one database record (it was for $22.99), so you can’t see price history chart.
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)).