Specification Channel: Dual (Isolated channel) Output: Max. 130mA (peak value) Loading: 500 Ohm Pulse Width: 50μs ~ 400μs Pulse Rate: 1Hz~ 150Hz Wave shapes: Rectangular biphasical symmetrical Rectangular symmetrical alternated Mode: 4 Manual Modes and 17 Preset Modes are available Treatment time: Continuous, 10, 20, 30, 45, 60, 90mins Power supply: 2 Alkaline AA 1.54v(LR6)