Ultrasonic Pest Control Repeller - Pest Repeller Plug In - Repel Rodents, Mosquitos, Roaches, Bed Bugs, Flies, Spiders & Bat - Up to 1600 Sq Ft per Device (2Pk) by Ever Pest

very easy to use, no noise, no cockroaches and mice from the beginning of use. I recommended!

Be aware that any insects hiding will surface for a few days or weeks. After which you should see less and less of any insects. Great product imo we have 3 in the house with plants to add a few more . Each additional one improves the protection.

I received what I ordered when they said I would.

just takes too long to take effect

According to our Google searches we had something called septic gnats or drain flies in our bathroom as of recent. We had never had them before and I have no idea how or why they started appearing but they were only in our bathroom. Very strange. I bought this to try and stop that with the added bonus of the night light and it worked. I haven't seen another gnat again! So far I am extremely pleased, will update if things change.

didn't work like i thought

I received the item but there was nothing on it I am not too happy I want my money back

This product did not affect mice at all! A different brand seemed to deter them but this kind might as well not be there at all. Save your money.

don't work

TL;DR: This product does not work. I had the two units in separate rooms for 4-4.5 weeks. No results. Pests were still present in those rooms. This product does not work the way the company advertises. The first claim the company makes is that one unit effectively covers 800-1200 sq. ft. with a maximum coverage of 1600 sq. ft. However, the outside of the box says "Ultrasonic sound and electromagnetic waves can not [sic] penetrate walls." So unless you live in an open concept home or a studio apartment, you need a unit for each room. In fact, the outside of the box says exactly that: "Recommend using one unit per room, or multiple units for large spaces, as a warehouse." I don't live in an open concept home, so I put the devices in the rooms with the most pests. The second claim the company makes is that results are apparent after 3-4 weeks of continuous use. I left the two units plugged in in their respective rooms for 4-4.5 weeks. By the third and fourth week, there were still insects (spiders, house flies, gnats, ladybugs, etc) in those rooms. It's been roughly 4.5 weeks at this point, and I'm returning this product because it clearly isn't working as claimed. One complaint I *don't* have is the light produced by the units. It's not alarmingly bright in a dark room. It's just bright enough to double as a nightlight. When plugged in, the light isn't continuous. It kind of fades in/out. Another positive about this experience is Walmart's 90-day return policy. Their return policy makes it possible to try this product for the company's recommended duration (3-4 weeks) without the return window closing. I was able to give this product a fair shot without losing ~$20.