SRDASS Ultrasonic Pest Repeller Indoor, Ultrasonic Pest Control, Pest Repellent Ultrasonic Plug in for Insects, Electronic Pest Repeller Indoor, for Cockroaches, Mice, Spiders, Ants, Bats (2 Pack)

Product Specifications: Power: 6-8W Sound wave frequency: 20KHz-65KHz Effective Range: 120-150sq.meters Installation Height: 20in-40in higher than ground Input Voltage: AC90V-240V/50-60HZ Dimensions: 3.4in x 3.4in x 5in   Ultrasonic pest control process: 3-5 days: pests are very active 2-3 weeks:the pest is stinged by the sound wave and slowly escapes the coverage of the sound wave 4 weeks: pests can't stand it and start migrating   Ultrasonic pest repeller indoor is absolutely safe for children, pregnant women, pets and your family, it only affects pests, does not contain any chemical substances, is healthy and environmentally friendly, non-toxic and harmless, and has no odor.   Repel a variety of pests: hamsters, mice, gerbils, guinea pigs, squirrels, bats, spiders, cockroaches, fleas, flies, bees, wasps, ants, bed bugs, silkworms, mosquitoes and other small pests.