Safe Ultrasonic: Generates pulses and ultrasonic waves to stimulate the central nervous system of mice and rats, it takes 3 seconds every 20 seconds, the effective diameter of each repellant is 15M, very effective for rats and mice, harmless to humans, animals and poultry , ideal for gardens, farms, greenhouses Smaller and more efficient: functional and retention, reduces mole size, takes up less space, and the overall color blends into the environment. 3.5cm*3.5cm amorphous silicon solar panel, energy conversion up to 10%. It is best to have enough energy on cloudy days. No power consumption, no cost, very environmentally friendly, reduce electricity costs.     Environmentally friendly material: Made of high quality ABS and aluminum tube, IP65 waterproof and corrosion resistant, it will not pollute the ground even if it works for a long time. Green enclosures are great for hiding in plants or as garden decorations.     Large effective working area: The equipment operates in a circular mode with a radius of about 15m and covers an area of ​​700 square meters. For best results, we recommend installing 2 units every 100 feet on floor surfaces where birthmarks are common. Product Description Solar panels Solar Panel - 2V / 70mAh Monocrystalline. Battery - 1.2V/600mAh NiMH battery. Frequency - 400Hz +/- 50Hz. switch Unlike other mouse repellers, this mouse repeller comes with a switch. You can change the rodent repellent at any time Material High quality ABS plastic. IP65 waterproof, don't worry about rain When placed underground and activated, the sonic pulse penetrates the ground every 30 seconds and produces sounds that are highly irritating to moles and gophers, rats, voles, snakes and other rodents. Keep your garden, yard or farm organized!