Ultra Ultrasonic Mouse Insect Control Plug In Pest Repeller - White

Plug one 400 Ultrasonic mouse repeller directly into a socket in each room. The ultrasound is at a high frequency that is thought to be audible to rats and mice but too high for most humans, cats or dogs. Insects and other crawlers are thought to be similarly affected by the high frequencies. The frequency constantly changes, the aim being to prevent vermin becoming resistant to the sound. Recommended for rooms up to 400sq ft (an average room size). Thought not to affect cats or dogs. Will not affect computers, burglar alarms or other electrical equipment. Of course, as with all methods involving animal behaviour, we can't promise effectiveness in every situation, however, the feedback we get from customers suggests that this device is effective in many situations. Please note that ultrasound does not pass through solid objects. Therefore these devices wont affect rodents in cupboards or walls, ceilings and floors.