General description Efficient Solar Powered Rodent Repeller designed to keep moles, voles, gophers, rats, and other rodents away from your outdoor spaces. This humane solution emits sound pulses that deter pests without harming them, making it safe for use around pets and children. Technical specifications Sound pulse duration: 3-4 seconds Sound pulse frequency: every 40 seconds Operating time on full charge: up to 400 hours Power source: Solar panel (high quality polycrystalline silicon) Installation No wiring or external power required Simply plant the repeller in the ground and press the button to activate Usage For optimal performance, place a rodent deterrent every 96 feet in your lawn Effective in protecting lawns, yards, and gardens from rodent damage Other information Waterproof and rainproof design for reliable operation in various weather conditions