Product description Mains voltage: 100-230 V AC, 50/60 Hz. Average power consumption: 4W. Frequency range: 20-70 kHz Sawtooth waves frequency range: 10-70 kHz. Colors: white, black Plug specifications: EU Plug Packing area: 2 * ultrasonic insect repellent 1. Environmentally friendly and safe: The principle of the ultrasonic pest control is the power frequency. The latest triple-wave frequency conversion technology. Ultrasound and electromagnetic waves can effectively ward off cockroaches, rodents, mice and other parasites by affecting your nervous hearing system. This study found that it affects 99% of brainwaves from pests but does no harm to humans or pets. And instead of chemical pesticides. 2. 4 bands can be selected A. Mouse repeller: Under normal circumstances, plug it directly into the socket. In the standard on state, the symbol is activated. Indicates that the product is in the mouse repeller band. B. Mosquito repellent: In the rat protection state, press the function key once. The symbol of the display frequency lights up to indicate that the mosquito repellent tape. C. Cockroach Repeller: Press the function key in the state of the mosquito. 3. Widely used and energy saving: Wide range of application: Ultrasonic pest control is ideal for homes, offices, garages, attics, basements, warehouses and greenhouses etc. and is for insects, rats, mosquitoes, flies, wasps, ants, Spiders, fleas, cockroaches, low energy but suitable for high efficiency. 4. Quiet and effective: Ultrasonic repellent that works with low-frequency ultrasonic waves. This means that you get extremely silent pest control and cannot disturb you and your pets. 5. Long range This double microchip system, equipped with ultrasound insect repellents, is suitable for an area of 80 square meters. Since ultrasound cannot penetrate walls and solid objects, it is recommended to place one in a room.