Korg MMA130 Mobile Monitor Amplifier Monitor amp/mini PA; ideal for street performances; vertical, horizontal or pole-mount design Four-channel mixer with three-band EQ and Anti-Feedback suppression XLR/TRS balanced inputs (x2); 1/4-Inch unbalanced inputs (X2); RCA, 1/4-Inch, and 1/8-Inch AUX inputs AC or battery power; ECO mode: Up to 12 hours (6 x C batteries); Up to 24 hours (12 x C batteries) DC 9V power out runs microSTATION, microKORG XL, microSAMPLER, microPIANO, Wavedrum, or Monotribe