Easy to operation, you only need to set the time & power, then adopt the Laser irradiate the Pain area or wound Best tool for family siotherapy, save much cost to visit doctors. High Quality, Lifespans more than 3 years, full 1 year warranty Effective for joint pain, muscle pain, Migraine, Plantar fasciitis, osteoarthritis, diabetic neuropathy on foot, arthritis, wound, accident injuries is up to 90% 100$ Dollars Laser Therapy Protocols Free, Only Domer Laser can supply you the professional laser therapy protocols for 50+ different disease free to help you get the better results