Pulse-charge,auto alarm function,set up two step reduce pressure,simple operation,high safety,the Max.flow speed ... is 30I/MIN Pulse-charge,auto alarm function,set up two step reduce pressure,simple operation,high safety,the Max.flow speed ... flow speed is 40I/min; reduce pressure set up with two stepRange of maintained intra abdominal pressure:4-22 mmHgPower:35w ...