AmpliVox International AC Adapter/Recharger This unit powers the amplifier directly or recharges the optional S1465 NiCad Battery Pack when installed in the amplifier. Automatically senses and adjusts for AC 110 to 240 volts 50 or 60 Hz. For all AmpliVox 50 watt multimedia amp sound systems. 15-volt center positive 2 amps 712 ft cord.