... harm for man Repel mice,beetle,mosquito,flea,fly,cric ultrasonic mosquito killer factory Product DescriptionUseful area: 50-80 square metre ... lustrate mouse machine, electronic helminthes machine etc. 3. The ultrasonic that sent out from this machine is far away from ... range: AC90V-250V. Frequency: 50Hz-60Hz) 5. Caution: Moisture proof, waterproof 6. Do not clean the machine by strong impregnant, water ...