HQRP AC Adapter Power Supply for Boss GT-100 Amp Effects Processor ; Boss GT-10 Guitar Effects Processor ; Boss GT-10B Bass Effects Processor [UL Listed] + Euro Plug Adapter HQRP&reg; AC Adapter plus HQRP&reg; Euro Plug Adapter; Input: 100V-240V AC; Output: DC 9V, 2A; UL Listed; 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!