HQRP® AC Adapter plus HQRP® Coaster; * Input: 100V-240V AC (USA plug+EURO adapter); Output: DC 5V, 2A; * 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!