Review on 2021 Upgraded Ultrasonic Pest Repeller: 8-Pack Ultrasound Plug-in Pest 🐜 Control for Home, Office, Kitchen, Warehouse, Hotel - Effective Electronic Insect Repellent by Yousef Dudley

I've just moved from a downstairs apartment to an upstairs apartment and every year I buy these new plugs and put them in every bedroom as a preventive measure . Pests and such and I love these that they plug into the bottom plug and then you can plug something onto the top plug, the others I've had I couldn't so love that feature, and the packaging of eight was enough to put it in any room with no problems and I hope it stays that way, thanks for the good price and good product