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 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.

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

DO NOT BUY THIS PRODUCT! It didn't even last 5 months and I contacted the company and they didn't even bother to reply to me. It's useless! Doesn't even deserve one star. IT'S JUNK!

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’ve been using the Pest Defence Ultrasonic Pest Repeller for a few weeks now, and I’m really impressed with the results. It’s super easy to use—just plug it in and it starts working right away. I noticed a big difference within the first week. There are definitely fewer bugs around, and I feel much more comfortable at home. I also like that it’s completely silent for humans and doesn’t use any chemicals, which makes it safe for pets and kids. The design is simple and fits well in any room. Overall, it’s a great, hassle-free solution for pest control. Highly recommend!

Worked well for about 8 months and then the light went out. The mice are back. A little pricey for something that didn't even last a year.

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