Ultrasonic Plug-In Repeller — 4-pack

Our most-debated product.

Some buyers swear by it. Some say they couldn't tell. The science is mixed — so we priced it like a science experiment and put four units in the box so you can run your own. One for the bedroom, one for the kitchen, one for the hallway, one for wherever.

• 4-pack covers ~120 m² (one per room)
• Ultrasonic + electromagnetic emitter, soft LED night-light
• Plug-and-play — no app, no setup, no Wi-Fi
• Pet-safe at the stated frequency (above cats / dogs / rabbits' hearing range)
• Plug variants: EU, UK, US. Default ships EU.

Best in: bedrooms, kitchens, hallways, rentals where you can't drill.

If it doesn't work in your home, send it back within 30 days for a full refund — that's the point of the 4-pack.