The wrap uses dual light wavelengths: 660nm red light to ease surface pain and boost circulation, and 850nm infrared light to penetrate deep into joints and reduce inflammation. It is designed to help with arthritis, stiffness, and post-workout recovery. 

Yes. It is fully cordless with a built-in 3000mAh rechargeable battery and USB-C charging. You can wear it securely using the flexible straps while at work, walking, or relaxing. It has 5 modes (Low, Medium, High, 10Hz Pulse, Breathing) and a timer (10 or 20 minutes) that are easy to adjust with simple button controls. 

Do not use if you have a pacemaker or other electronic implant, metastatic tumors, high fever, are pregnant, have a bleeding tendency, or have an acute injury (within 72 hours). Also, avoid use if your skin is light-sensitive or you are taking medication that causes light sensitivity. Stop immediately if you experience any discomfort.