Pest Defence Ultrasonic Pest Repeller, Bye Critter Ultrasonic Pest Repeller Plug-in Mouse Repellent for Home – Repels Mice, Spiders, Rodents, Cockroaches, and Ants – Eco-Friendly, Chemical-Free

As a mom with two little ones, I love this keeps our home pest-free without using chemicals or traps. I don’t have to worry about sprays, poisons, or sticky traps where the kids might touch them. I just plugged it in next to the door and it’s been doing its job quietly ever since. Such an easy, safe, and stress-free way to keep unwanted guests out of the house! (Unfortunately not proven to work on the human species…)

I purchased 4 of these to use for mice problems in my boat and RV. I installed them in November of 2025 and 2of the 4 have already quit working as of March 28, 2026. I am quite disappointed with the short life span of these units for the price I paid for them. I see they have a 30 day refund policy, so thats how long they must expect them to work! Follow Up: I received correspondence from the company and they are giving us a total refund for our purchase. The company does stand behind their product in our case.

I’m very happy with this ultrasonic pest repeller. One of the main reasons I chose it is because it doesn’t require any chemicals, which is important since I have children and a dog at home. It was very easy to set up just plug it into an outlet and it starts working right away. It’s completely silent, so it doesn’t disturb anyone in the house. Since using it, I’ve noticed fewer pests around my home. Overall, I’m very satisfied with this purchase and would definitely recommend it to other families looking for a safe and convenient pest control solution.

Initially when plugged in the green light came on. Fingers crossed any mice in the house decided to take a hike. I have not seen any mice or residue since. However, When the power goes off, I need to go around and re power up the units. Also two of the units I bought do not work any longer. Very short useage

I bought 4 of the Ultrasonic repellents and within 4 months all of them died out...They lasted beyond the refund period, but not much longer...I wasted a good portion of the approximately $100 I spent on them & I'm left holding the bag & feeling ripped off...I've bought other repellents that have lasted years & are still working....

I like this pest repellent. It lasts 4 to 5 months and is very effective. I use it in my room at my care center. The room is a little over 100 ft.² including restroom.

I’m very satisfied with the Pest Defence Ultrasonic Pest Repeller. The packaging arrived well sealed and in perfect condition, and the delivery was fast. The product looks exactly like the description and feels well made. Setup was incredibly easy — just plug it into the outlet and it starts working right away. I really appreciate that it’s eco-friendly and chemical-free, which makes it a great option for homes with kids and pets. There’s no smell, no noise that I can notice, and no mess at all. After using it consistently, I feel much more comfortable and confident in my home environment. It’s a low-maintenance solution that doesn’t require traps or harmful sprays, which is a huge plus for me. Overall, this product offers great value, works as described, and is a convenient alternative to traditional pest control methods. I would definitely recommend it to anyone looking for a simple and safe way to help repel pests at home.

Bought it in November. Put it in the garage and turned it on. The green came on, indicating it was working. In February, I noticed the light was off, so I turned it on again. There were no power outages, so there should have been no reason for it to be off. I April, I noticed it was off again. It would not turn on again. It most likely did what it was supposed to do through the first few months, because I see no evidence of mice in the garage. But, I expected it to last much longer than four or five months. You might be better off buying another brand, if you want to go the electronic route.

I hope is working,don't see any pests,, I bought second one .