Product Features:Name: Ultrasonic double speaker high power repellerMaterial: ABSLight: blue lightRange of action: 300 square meters effective1: non-toxic, less than one tenth of the radiation of mobile phones2: Ultrasonic frequency: 50-60KHz3: Radiation area: 30-50 square meters4: Power: 90-250V5: Power: 5W6: The products do not interfere with each other It is better to use several households for more effects 7: The longer the use time, the better the effect, the physical deworming, the ultrasonic waves cause the mosquito visceral disorder to achieve the driving effect CE, RoHS certification Package Includes:1Ultrasonic repeller mosquito repellent Note:This pest repeller should be installed at 80-120 centimeter away from the floor vertical to the floor plug to the power socket The installing point should be avoided from carpet, curtain etc attaching sound material Because the fabric subject will absorb the ultrasonic decrease the pest repelling effect It's normal that the mouse vermin will increase at the beginning of the using days Because they are moving away from their living place after the attack of ultrasonic Don't clean the machine by strong impregnant, water or damp cloth Use dry soft cloth with some neuter wash to clean it Don't drop the machine make strong striking on it Working environment temperature: 0-40C,Please make sure if the plug fit your country's stard