Natural Reliefred light therapy equipment is designed to provide soothing relief. Red light is a safe and effective way to soothe your muscles and joints in the comfort of your home! Combination of Multiple Theories The apparatus adopts the principle of modern infrared light,Combining multiple theories,only to provide you the most effective therapy to alleviate your pain. How to Use & How OftenDirectly apply the infrared therapy device onto the targeted part, or keep it at 1-8cm, and hold it for 5-30 minutes for each body part. Please use this device 1-3 times a day in a row of 7-10 days, and please pause 2-3 days before using it again. Esay to UseSmall size and handheld,specially design for household use.For different body area,there are Different recommended methods of use.Instructions for use are included in the package. Idea Gift ChoiceThis red light product is a perfect gift for friends,family,others on birthdays, anniversaries, Valentine's Day and other occasions. Using it can help you fall asleep faster and relax completely pain relief.Regardless of your dissatisfaction with this product for any reason, please contact us and we will provide you with a satisfactory solution. For Knee, Shoulder, Back, Joint & Muscle Pain, Arthritic Pain, Sciatic Pain, we suggest use twice a day and about 20-30 minutes each time. At least 4 hours' interval between twice use in a day. About 15 days is one treatment course and 2-3 days' interval between 2 courses. Features: Very stylish design, small in size, easy to carry and operation The treatment process is painless, non-invasive, no trauma, green and safe. Package included: 1 x Host; 1 x Carrying Case; 1 x Power Adaptor; 1 x USB cable; 1 x Manual; 1 x Warranty card; 1 x Safety glasses.