Description: Safe to Use: With sonic wave design, this rat repeller is friendly to humans and pets, sonic wave only affects pests and rodents. Adjustable: There are two band waves, 25-70Khz and 10-70Khz. This pest control device allows you to switch between 2 band waves to meet your different needs. Suitable places: This pest repeller is well suited for places like home, office, barn, warehouse, supermarket, shopping mall, etc. Power saving: This sonic rat repeller is low power consumption and won’t cost much power while running, so you can always connect it to power. Powerful: This pest repeller is suitable for an area of 200 square meters, and the frequency is changed all the time to prevent pests from adapting. Specification: Rated voltage: 110-230V. Rated frequency: 50/60Hz. Rated power: 3W. Size(LxWxH): Approx. 9x3.8x6.2cm/3.54x1.50x2.44inch. Package Includes: 1 piece sonic repellent.