Product Name: Ultrasonic Insect Repellent Product model: A18 Product specifications: American regulations, British regulations, European regulations Applicable voltage: AC90-250V Frequency: 20~60khz Main function: This product uses ultrasonic waves to stimulate the neurons of the pests, and the principle of causing the pests to be uneasy achieves the effect of repelling mosquitoes, mice, cockroaches, bed bugs, fleas and other pests. This product adopts dual-wave technology of ultrasonic and bionic wave, which greatly increases the effect and efficiency, and the dual-wave mode works at the same time without manual switching. Ultrasonic technology using sine wave waveform, compared with square wave waveform, the effect of sine wave is faster and better. Non-toxic, tasteless, no noise, environmental protection and no radiation, suitable for pregnant women and children