Ultrasonic repeller uses the advanced technology, which can produce frequency conversion ultrasonic wave to affect auditory and nervous system of mice, mosquitoes, cockroaches and other pests and cause neurological disorder, loss of inappetence and mental fatigue, thus fleeing the scene. It can be widely use in families, hotels, restaurants, warehouses, supermarkets, offices and more. Features: Ultrasonic repeller is mainly used to repel mice, mosquitoes, cockroaches, spiders, ants, flies and so on. It produces ultrasonic wave to affect auditory and nervous system of mice, mosquitoes and pests to make them flee the scene. With night light function, 2 levels of brightness adjustable, soft and warm light brings you a comfortable night. Plug-in type, lightweight and portable, it can be widely applied in families, hotels, restaurants, warehouses, supermarkets, offices and other places. No sound, no chemicals, no poisons and odorless, safe to both mothers and babies, 15-30m effective coverage area. Advanced and scientific design: intelligent frequency conversion to avoid pest adaptability. Note: 1. Pests may be active and disorderly about 5-7 days after use, it's normal and you can see obvious effect after 2-3 weeks. Allow the Pest Repeller to operate continuously for best results. 2. The repeller should be installed at 20-80cm away from the floor and vertical to the floor. 3. The repeller should not be plugged in the wall behind the fridges, sofas and curtains, or under the bed. 4. Clean it with dry and soft cloth instead of strong impregnant, water or damp cloth. 5. Size and color may be slight different beacuse of manual measurement and different light conditions, please in kind prevail. Thank you. Specifications: Color: White Plug: EU Voltage: AC 90-250V Material: Fire Retardant ABS Power: 3W Ultrasonic Frenquency: 20-65KHz Effective Coverage Area: 15-30m Item Size: 50 * 50 * 43mm / 2.0 * 2.0 * 1.7in Item Weight: 25g / 0.9oz Package Size: 53 * 53 * 66mm / 2.1 * 2.1 * 2.6in Package Weight: 37g / 1.3oz Package List: 1 * Ultrasonic Repellent & Night Light