Solar sonic mole repeller vibrates and emits 400HZ low-frequency sonic pulses every 30 seconds to repel burrowing rodents. The vibrations and sonic pulses are harmless to human, pets and environment. Effective, safe and humane rodent repellent. The vibrations and sonic pulses will penetrate the soil to create an unbearable environment for underground burrowing rodents to stay and force them to leave the property and seek out other places to live. Extensive coverage: a solar powered sonic pest repellent radiates in all directions. Efficient solar charge. The solar mole repeller is charged by polysilicon solar panel to accumulate power for operation at dark hours.