Features Used for any creature from deer, raccoons, opossums, dogs, cats, rodents, bats, skunks and insects. Adjustable frequencies for different pests, i.e. Ultrasonic. AC or DC operated, motion sensor triggers ultrasonic blasts in battery mode to save battery power. 50 foot AC cord included. No messy or dangerous chemicals, multiple season use commercial quality and strength, coverage to 4,000 square feet. For indoor or outdoor use , weather proof construction.... backing included to cover controls. Ideal for yards, gardens, trash areas, porches, patios, garages, barns, etc. Mountable. Ultrasonic. SPECIFICATIONS. Power Supply: 4 x 1.5V "C" batteries. 120 V AC adapter. Note: when using an AC adapter, the unit will automatically switch to battery (if batteries are in) during a power failure. Working Current: <200 mA. Motion Sensor Activation: up to 35 x 70 feet. Frequency: 15 kHz -25 kHz (adjustable). Effective Range: up to 4,000 square feet.