Don't get caught losing that #1 hit song you just wrote. Plug it in! The PA3 is designed to eliminate your constant need for fresh batteries by using efficient AC operation. Other Features Include Energy efficient Compact design Specifications Input 120V, 60 Hz Output 700 mA Cable length 6 feet Compatability commended for PSR293 and below, EZ20, EZ150, EZ250i, EZAG, EZEG, DD35. Also compatible with the following Silent Stringed Instruments: SV-120, SVC-50, SVC-100, SVC-200 and SVB-100.