Mice and rats love to cosy-up in walls, ceilings and floors, this premium plug-in repeller lets them know theyre not welcome! Covering a massive 460m², it works through walls without being blocked by wiring. No inhumane traps or nasty chemicals. Using electro-magnetic and ultrasound technology, it emits a high-pitched noise (inaudible to humans) thats hated by mice and rats, and deters them from nesting in your home. Built-in nightlight with 2 LEDs. H15x W8.5 xD7.5cm (inc plug).