Keystone KSTAP14B 115V Portable Air Conditioner with "Follow Me" LCD Remote Control for Rooms up to 400-Sq. Ft. Portable air conditioner with self evaporative system 16000 BTU (ASHRAE-128 Standard) / 9800 BTU (DOE 2017 Standard) Special 230-volt/20-amp electrical outlet required (Unit will not work with a standard 115V outlet) Four operational modes include Auto, Cool, Fan and Dry Designed for a room up to 450 sq. ft.