KINDALAND 6 Packs Ultrasonic Pest Repeller, Pest Repeller, Electronic Pest Repellent Plug in for Insects,Mouse,Bugs Insects Roaches

Uses dual chip emits a more powerful and concentrated ultrasonic wave
The ultrasonic pest repeller is portable and easy to install,energy saving
Just plug the electronic pest control ultrasonic repellent in power sockets and it will start to repel the pests when you notice the blue night light is on
The pest defender is effective in an area up to 800 to 1200 sq ft, this mosquito repellent is suitable in house, offices, garages, warehouse, attics, hotels, basements, supermarkets ect
The ultrasonic pest repeller working with low frequency ultrasound waves, no noise in the room can influence you and your pets