Product Description Specifications: Solar Panel: 4.3V, 20mAh Battery: 3.2V, 250mAh rechargeable battery Frequency: 400Hz Height: 260mm / 10.24" Diameter: 70mm / 2.76" Product Selection: Available in 2pcs or 4pcsFeatures: Working Method: The solar probe deflector vibrates and emits 400-1000 Hz low-frequency sound impulses in all directions every 30 seconds. These sound impulses do not physically harm pests; they simply create an uncomfortable environment, driving them away. This environmentally friendly method is ideal for gardens, farms, and greenhouses, ensuring no death, no poison, and no traps. Solar Operation Waterproof: Equipped with a solar panel on top, the device harnesses solar energy, saving power and protecting the environment. It can also be charged using a USB cable. Made from high-quality ABS plastic, the device is weatherproof and UV-protected, withstanding rain, snow, and harsh sunlight. Perfect for outdoor use in gardens, yards, and farms. Environmentally Friendly Materials: Constructed from high-quality ABS and aluminum tubes, the device is IP65 waterproof and corrosion-resistant. It does not strain the ground even after prolonged use. The green outer shell blends seamlessly with plants and can also serve as a garden ornament. Wide Effective Work Area: The device operates in a circular pattern with a radius of about 15 meters, covering up to 700 square meters. For optimal results, it is recommended to install two devices every 100 feet in areas frequently used by moles. Easy to Install Wide Infrared Sensor Range: Simply unpack the device, select the desired mode, and insert the repeller into the ground, mount it against a wall, or place the top part directly on a flat surface. The wide infrared sensor range ensures effective coverage and ease of use.Package Contents: 2pcs or 4pcs of Solar Mole Repellent devicesNotes: The device is designed for outdoor use and is highly durable. Ensure proper installation for maximum effectiveness. The green design allows it to blend into garden environments, enhancing its aesthetic appeal.