Aliexpress
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (48.22 USD): BGGutscheine
Coupon (48.75 USD): BG8ReviTrage
Coupon (48.75 USD): BGcoupon8off
(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): Cuponation9
(these codes were not working in latest coupon update, but you can check them out anyway)
Price history and price alert
Price history (for all/most countries) for Smart Trash Can Touch Free Automatic Sensor Waste Bin 14L is here.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).