Detail

• Mild Humming Sound:The waves that this repeller sends are far beyond the hearing range of human-beings. The machine produces mild humming sound for pest repelling function.
• Just Plug In: Please install our item at 7-16 inches away from the floor . Just plug our electronic mice repellent into the socket and should be vertical to the floor.Usually ultrasonic repellers take 3-4 weeks to make effect.