Review on 🐜 2021 Ultrasonic Pest Repeller (6 Pack) - Electronic Bug Repellent for Ants, Mosquitoes, Mice, Spiders, Roaches, Rats, Fleas, Flies by Cody Hinckley

I only tested it for about 36 hours. I haven't seen any insects, but I usually do... Although it's hard to say, they can actually repel insects. However, I'm sure they are interfering with my Wi-Fi signal and also interfering with my cellular reception, although it's hard to say... As nothing was working very well while they were connected and working. After I removed them, my WiFi and all devices, including cellular, worked properly again. It was a difficult decision but I need to leave my wifi and return these items.