excellent product I recommend it. I have used it before.You must follow the instructions and picture diagrams. At 1st I thought the appliance did not work but once I put my feet in the water an tightly connected the wrist strap it started to bubble on level A and also the water started to turn a different color. The mode section continues to flicker, the A-Time is constant the amp screen give you your level it will fluctuate but it will not be 0.0. I hope this helps Future people like myself that would like to improve their health.I was a little skeptical at first. I actually took apart the electrode that goes in the water to understand how the thing works. Both my wife and I could feel a difference in are joints and when we were sleeping. We use the foot bath every two to three weeks. Its amazing.very fast delivery, great product and great price, the machine are reliable and work very well. Highly recommended to those with high diastolic pressure or varicose vein, use both port at the same time, one port for the left hand and the another port for the hand hand but put both detox array in the same bucket, do the foot bath this way for 1 hour everyday before sleep, you will see diastolic pressure come down in two week and varicose vein disappear in as short as 1 month.For those those take any kind of prescribed medication, be warned that the foot bath with such intensity could pull out some or all of the medication, therefore it is better you take a medication after ionic foot bath.Just amazing, absolutely revolutionary medicine.I found this to be a reasonable price. I have been wanting one for a long time. I have used it 5 times. First it came with very little explanation of how to use it. I tried to get more info but what I got was not helpful. Now the timer on both sides does not work nor does the music. How do I know if the main part is working correctly? If I had it to do over I would get a more expensive one that may be better quality. I think this came from ChinaI would return it but have had it too long and do not want to pay shipping..Muy buena para trabajar.. yo la uso para mi negoció y es exelente ..muy buenos resultadosgreat , excited to use itNo tiene instrucciones. Todo lo tuve que conseguir en internet del original es copia china.