Size:square Result with New Technology: The solar ultrasonic pest repeller is applied ultrasonic technology that emits sonic waves and vibration sound every 20 seconds to drive harmful rodent animals away from your house and garden. Defend your yard with these pest and rodent repellent stakes for squirrels, moles, mice, and gophers. Wide Coverage: Up to 12,000 feet of protection,which penetrate through the soil and discourage them from entering the protected area as moles are sensitive to sound and vibrations. Since burrowing rodents like moles, voles, gophers, and groundhogs are common throughout USA, it is a effective way to deter them from destroying your outdoor areas such as lawn, yard and garden. Safe For Kids And Pets: Forget the harmful chemicals, poisons, and traps typically used in households, all you need to do is inserting this device into the ground by making a pilot hole and turn it on. The vibrations and sonic pulses emitted by these solar pest and animal deterrents are completely safe for humans and pets. Solar Power: Increases the size of the solar panel, making this product working longer, no additional batteries are needed. The device will automatically collect energy from the sun during the day to repel pests all day and night. It can be used for about 3-5 days after fully charged(on overcast days) Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.