For use with all AmpliVox® 50W amp-equipped sound systems. Automatically senses and adjusts for 110 AC to 240 volts, 50 or 60 Hz. This unit powers the amplifier directly or recharges the optional S1465 NiCad Battery Pack (sold separately). Low-profile design for easy storage and travel capabilities. Non-vented, spill-proof case ensures your safety at all times. Battery Type: NiCad; Rechargeable; Cord Length: 7 1/2 ft; Power Source(s): AC/15 Volt, 50/60 Hz, 110/220 Universal Cord.