OMI RING Pulsed Electromagnetic Field Therapy PEMF RingAnnular Shaped PEMF therapy device for professional and home use The product comes with a 1 year warranty and lifetime product support. We guarantee you will be able to use it whenever you need it! Directly from the manufacturer Our PEMF devices have been on the market for over 10 years Easy to use, no training required Ergonomic design to pull it over the head down to the neck, or slip a limb through it