Electronic Ultrasonic Anti Mosquito Insect Repeller Household Use Harmless Rat Mouse Pest Reject Repellent Repeller Features: Can get rid of house mouse, black beetle, mosquito, flea, fly, cricket, ant, wood ant and vermin, etc. The ultrasonic that sent out from this machine is far away from hearing range of human being. They will not do harm to human being and pets, also will not have affect on house machine. Safety and environment protected, smell-less and flavorless. Widely used in family, warehouse, shops, hotels, hospitals, offices, gardens, hotels, grain depot, etc. Specifications: Color: white Size: 9*6*3.3cm Package size: 10*6.5*7.5cm Working voltage: 110-230V Frequency: 40-70HZ Plug type: US, EU Package included: 1 x Mouse Pest Repeller Notes: Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures. Thank you!