YEELIGHT Automatic Mouthwash Dispenser Machine (Banggood, Aliexpress: Battery Capacity 2600mAh, Endurance Time 3-6 months (Calculated based on 4 inductions per day / more usage will result in faster power consumption), Gear Adjustment 2 Gears Adjustable, Product Capacity 550mL, Product Color White, Rated Power 1.6W, Product Weight 410g, Charging Time 6-12 hours, Input Current 1A, Product Size 87x 57x 316mm/3.42x 2.44x 12.44”, Input Voltage 5V, Installation Method Punch-free / Wall-mounted (Punchable), Material PABS+PC / POM / PPN / PETG / Liquid Silicone (the best price with coupon)).
You can create price alert here, copy coupons and view price history. 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 code price check (UTC time):
Banggood
Banggood warehouse is located in China. There is one coupon available! Pretty cool, huh?
Link: Banggood product page
1. ($60.60): BGHealth06
apply it 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/feV
Old coupons (from the oldest to the newest): BGJUY05, BGYEE2021, 13f142, BG10OFFAFF1, BANGGOODSD, 6GSGIT
(these coupons are old, so probably won’t work)
Price history and price alert
Check out price history chart (for all/most countries) for YEELIGHT Automatic Mouthwash Dispenser Machine. The lowest price was: $55.79.
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)).