Power supply DC9V/500mA (negative center) - for pedals A (A3), B (B3, B1on, B1Xon), G (G2Nu, G2.1Nu, G1on, G1Xon, G5) and MS series (MS-100BT, MS-60B, MS-70CDR, MS-50G) Made in China Item package dimensions: 8 x 7 x 5 cm Quantity of items: 1 Negative pole