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:1*Ultrasonic repeller mosquito repellent. Note:This pest repeller should be installed at 80-120 centimeter away from the floor. And vertical to the floor and 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 and decrease the pest repelling effect.It's normal that the mouse and 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 and soft cloth with some neuter wash to clean it.Don't drop the machine and make strong striking on it.Working environment temperature: 0-40C,Please make sure if the plug fit your country's standard.