This infrared lights system combines 176 infrared & red light to largely function as a therapy wrap, with the wider lights covering the whole area on your hand, fingers, and wrist joint. Physical therapy ensures safe blood circulation stimulation, muscles relax, and pain relief. This Therapy Wrap works to provide relaxation to muscles and relieves muscle spasms with LED lights reaching deep into muscle and soft tissue. It reduces pain and stiffness associated and increase local blood circulation which benefits to safe therapy for many situations. How to use Put your hand in. Plug into a electrical outlet. Press on/off switch to activate device. You can only see the red LEDs; the others are in the Infrared light spectrum and cant be seen with the human eye. Therapy time is 20 minutes and can be used multiple times per day. Note 1. Less than 3 broken lights (total 176 lights) will not influence the effect of this light therapy. It still works well when there are three or less lights off. 2. The-less-than-three-light-broke-situation will not covered in the warranty policy. For detailed warranty information, please contact our customer service. 3. Please make sure your skin is cool and dry when using the lights wrap. 4. Do not strike or step on the lights system for it may damage the lights. 5. Not intended use on face therapy. 6. Use it once or twice a day, each time 20-40 minutes. - 10.6 inch x 7.4 inch x 2.3 inch Double-sided Pad design, 88pcs 660nm red lights and 88pcs 880nm infrared lights evenly distributed around the hand. The large internal space is suitable for most peoples sizes. - Auto shut-off timer20 minutes), do not exceed 40 minutes of use in one therapy session, cool your body and have some water before next applying. Wide voltage AC 100 - 240 V, DC 12 V. Apply pain relief when you are on business trip. 15 Ft power cord is long enough in the range of your activity. - 1 Year full warranty on the whole product. LIFETIME FREE REPLACEMENT on charger, controller and connectors! buy this equipment and experience painless, safe, and natural physical pain relief solution - Red Light Device - Designed for pain relief, injury recovery and muscle relaxation, work with auto shut-off for 20minutes, a time controller is also ready for cusomizing use. This device can be used multiple times per day, and it is safe for all skin types. - Doctor-Recommended & used by Health Professionals This LED therapy utilizes the state of the art technology used on Pro Athletes by todays leading Doctors, Physical Therapists and Trainers. Its been tested in the real life by several athletes and the aged. Now you can successfully apply to ease painful joints and muscles at home for a fraction of the cost. Tested in the real life by several athletes and the aged.