This infrared lights system combines 176 infrared & red light to largely function as a therapy wrap, with the wider lights covering the whole area <br>on your hand, fingers, and Wrist joint. Physical therapy ensures safe blood circulation stimulation, muscles relax, and pain relief.<br>This Therapy Wrap works to provide relaxation to muscles and relieves muscle spasms with LED lights reaching deep into muscle and soft tissue. <br>It reduces pain and stiffness associated and increase local blood circulation which benefits to safe therapy for many situations.<br><br><b>How to use</b><br> Put your hand in. Plug into a electrical outlet. Press on/off switch to activate device. You can only see the red LED’s; the others are in the Infrared light spectrum and can’t be seen with the human eye. Therapy time is 20 minutes and can be used multiple times per day.<br><br><b>Note</b><br>1. Less than 3 broken lights (total 117 lights) will not influence the effect of this light therapy. It still works well when there are three or less lights off.<br>2. The-less-than-three-light-broke-situation will not covered in the warranty policy. For detailed warranty information, please contact our customer service.<br>3. Please make sure your skin is cool and dry when using the lights wrap.<br>4. Do not strike or step on the lights system for it may damage the lights.<br>5. Not intended use on face therapy.<br>6. Use it once or twice a day, each time 20-40 minutes.<br><b>Attention</b><br>People with heart disease or heart pacemaker can not use this light therapy system. Expectant mother, skin-ulcers and allergic people can not use it.