Input: AC 100V-240V 50/60
HzOutput: DC 9V1A (10-1000mA)
MAX: 1000mA Center Negative(-) External Positive(+) DC Plug Size Of 5.5 x 2.1 mmThis product is compatible with guitar pedals with currents ranging from 10mA to 1000mApaired with a 1to5 Way daisy chain cable it can simultaneously supply power to 5 guitar pedalsIntelligent and professional integrated circuit chips equipped with noise reduction and isolation safety protection performancethe magnetic ring at the end of the adapter cable can further reduce noiseSuitable for most brands of guitar pedals (center negative) and can also provide power to keyboards (center negative)