Brand - Micro Mini Maximum Voltage - 15 volts & 1.5 Amps Dimension - 1.5" (W) x 3.25" (L) x 1" (H). Weight - 2.1 oz Power Input - AC110-240V (Can be used in Any Country) Product Description - This is the worlds smallest power supply, great to have as a back up or great for traveling artist that attend tattoo expos. The power supply does have an AC adapter that is connected to the power unit. This power supply is universal and can be used in any country.