Sangean ADP-PRD18 Switching Power AC Adapter for Models PR-D18, PR-D4W and CL-100 (Black) Meets the Department of Energy's (DOE) new energy saving requirements Input Voltage: AC 100-240V, 50/60Hz Output Voltage: 6V, 0.4 Amps For use with the PR-D18, PR-D4W and CL-100 UL and CUL Listed