HQRP AC Adapter for Bose Companion 20 Multimedia Speaker System 329509-1300 PSM36W-180 Power Supply Cord Adaptor + Euro Plug Adapter HQRP&reg; Replacement AC Adapter plus HQRP&reg; Euro Plug Adapter; Input: 100V-240V AC; Output: DC 18V, 3.33A; Safety Features: High Efficiency and Reliability; Automatic Overload cut-off; Automatic Thermal cut-off; Short circuit and Over Voltage protection; Low Interference & Noise; 1 Year warranty!