SAFE FOR YOU AND YOUR FAMILY: Ultrasonic waves are safe for humans and household pets; This bug repellent is Noiseless, Non-Toxic, Chemical-Free and Odorless. LARGE COVERAGE AREA: Ultrasonic Pest Control is effective for an area up to 861 sq. ft. With Pulsing Night Light. WIDE USAGE AREA: Use this pest repellent in your home, warehouse, office, garden, hotel, restaurant, cafe etc. And forget about the pests. ADVANCED POWER IMPACT: Ultrasonic Pest Repeller uses advanced, safe, effective technology which protects your home from all kinds pests. Easy TO USE MONEY SAVE: Just plug in and turn on the insect Repellent all day to prevent any kind of pests coming back again, energy-saving. Ultrasonic Pest Repeller Plug is a effective and safe way to protects your home from all kinds pests, like Fleas, Mosquitos, Bed Bugs, Cockroach, Rats, Rodents, Roaches, Mice, Insect, Ants, Spiders, The range of 24-64 KHz ultrasonic keep changing to avoid mosquito adaptation to a certain frequency. Specifications: Color: White + Blue Ultrasonic Frequency: 24-64 KHz Input Voltage: 90-250v Output power: 4-6W Size: 90 * 55 * 30mm / 3.5 * 2.2 * 1.2in Material: ABS Package Weight: 53g / 1.9oz Package List: 2 * Ultrasonic Pest Repeller Plug