Chemical Free & High Quality: The ultrasonic repeller contains no harmful or toxic chemicals to repel rodents without injury. The exterior insect-proof zone inserts itself into the floors to work automatically. Besides, the snake repeller is also made of high quality ABS to ensure maximum durability and longevity. Material: Made of high quality ABS and Aluminum hard material for long term use. The rainproof design was developed to meet the demands of rainy days. It is waterproof and can be charged under sunlight so it can continue to be used at night. Rodent Control: Solar Mole Repeller keeps moles and voles away from your garden . The device emits vibrations in the ground, naturally rats hate this sound and treat it as a symbol of danger. This repeller is extremely effective against moles, mice, rats and other rodents. Excellent work: The sonic repeller can work continuously day or night, even on rainy days. Sonic Pulses emits sonic pulses every 30 seconds, it penetrates the ground