HighlightsMultiple power supply methodsOur rodent chaser can emit ultrasound at frequency 18KHz-36KHzSafe for humans, children, mothers, babies, cats, dogs and all house hold electronicsAutomatically resume work 10 seconds after the car is parked.Suit for garage, attic, basement, warehouse, barn, shed, living room, and etc..Details*Features* - *3 Power Supplies* - Equipped with 2 DC to USB cables,2 cables to vehicle power,our under hood rodent repeller can be powered DC5-12V vehicle power or ada