Portable Speaker, Auxillary Input Yes, Battery Size AAA, Display Type Digital, Features 2 Built-In High Fidelity Speakers, Includes AC Adapter No, Includes Batteries Yes, Number of 3.5 mm Headphone Jacks 1, Number of Batteries Required 4, Overall Depth 5 3/4 in, Overall Height 1 5/8 in, Overall Width 7 5/8 in, Power Rating 2W