HQRP AC Adapter for Bose MediaMate Computer Speakers, Power Supply Cord, 12V AC Media Mate + Coaster HQRP&reg; Replacement AC Adapter plus HQRP&reg; Coaster; Input: 120V AC; Output: AC (Alternating Current) 12V, 1.2A; Safety Features: High Efficiency and Reliability; Automatic Overload cut-off; Automatic Thermal cut-off; Short circuit and Over Voltage protection; Low Interference & Noise; Compatible with Original AC Power Adapter; 1 Year warranty!