weBoost AC/DC 5V/3.5A 2.5x 5.5x 11mm DC Plug Specs.: AC/DC 110/240VAC 50/60Hz to 5VDC/3.5A with 6 feet (1.8 meter) cable for use with the Home Multi Room (650144). 2.5 x 5.5 x 11 mm Plug Jack.