HEI&nbsp;LIANG Snoogg Ultrasonic Pest Electric Mouse Repellent for Mosquito, One Size, White More effective version - this ultrasonic pest repellent use safe & advanced effective technology to Disturb and irritate the nervous system of pests, which is more powerful which make pests and rodents are harder to immunize than before. Work well on Mice, Cockroach, ants, spiders, bed bugs, mosquitoes, insects, rodents, flies, Fleas and other kinds of pests. Safe & humane design - this Mice repellent adopts a physical way to drive Mice and pests away from your house instead of killing them. No toxic, no noise, no odor, no radiation or even no Dead body anymore! 100% safe for your families and pets with strong pest control effects. Wide effective coverage - each ultrasonic pest control has the coverage area of up to 1200 sq. Ft. The power is as low as 6 to 8 Watts, making our ultrasonic pest control more economical and more effective than normal expensive insect repellent. Plug and play - Plug the ultrasonic repeller in a power outlet and the LED light will power on. This insect repellent can effectively eliminate and drive away pests immediately without any mess. No cleaning up of Dead rodents or insects. Recommend install ultrasonic pest reject to the socket about 2030cm away from the floor.No battery required. Help you save a lot of costs. Satisfied guarantee - you will see effective results within 1 month. We guarantee 100% refund or Replacement for quality problems within 60 days.