1. Ultrasonic mice repeller sound is inaudible to humans and household pets,the repellent contains no odor or any insecticide components, and It is nontoxic. 2. Two highpower double speakers greatly increase the strength of repelling rats and mosquitoes, and effectively solve rodents and mosquitoes. 3. The intelligent frequency conversion technology continuously emits sound waves in different frequency bands, so that the rats cannot adapt to the living environment. 4. Silent and environmentally friendly, suitable for pregnant and infants, safe to use, just put the mouse in an unbearable environment. 5. It is easy to adapt to various occasion. It is very simple to repel mice and mosquitoes. It is suitable for many environments such as homes, warehouses, hotels, restaurants, etc. Specification Item Type: Pest Repeller BG319; Material: ABS; Color: Black/White; Plug: US/EU/UK Plug (Optional) Weight: Approx.93g/3.3oz; Power supply: AC110-230V; Rated Power: 5~8W; Acoustic Frequency: 22KHZ-85KHZ; Acoustic Waves Varieties: Ultrasonic, electromagnetic waves; Speaker Type: 2 buzzers; Coverage Area: 150; Product Features: Full frequency band dynamic cross frequency conversion technology; Package List1 x Pest Repeller, 1 x Instruction Manual.