Take your pain relief and recovery routine to advanced new levels with the power of infrared light therapy. The Tommie Copper Infrared and Red Light Therapy Back Wrap reaches deep into muscles and joints with 880nm infrared light with 660nm red light wavelengths, for relief of minor muscle and joint aches, pains and stiffness. Offering cordless convenience thanks to its integrated USB rechargeable battery, this Infrared and Red Light Therapy Back Wrap will become a staple of your daily recovery routine.