Aliexpress
Here are coupons that you can use.
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – ELUTO 4Pcs Ultrasonic Pest Repeller [EU] (-3 USD)
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 USD
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!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): pROMo8cuPoN, BG00c906, BGJUNEGSG9, BG8ReviTrage, TTSUMMER8, Cuponation9, BGdbe184, BG589b2e, BGf625a4, BG506f3c, BG1cddfb, BG23ALEAprD, BGf602ac, BGcf6161, BG07a7b0, BG081591
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – ELUTO 4Pcs Ultrasonic Pest Repeller [EU] (-3 USD)
Price history and price alert
Check out price history chart (for all/most countries) for ELUTO 4Pcs Ultrasonic Pest Repeller.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).