Infrared Heating Therapy Knee Pad Rehabilitation Assistance USB Model 1. To relieve knee pain associated with arthritis, bursitis, strain, sprains, meniscal tears. 2. Built-in mesh bag that can be placed into an ice pack for cold compresses or into a moxa pack for moxibustion. 3. Adjustable and fixed in place, two split strap designs with hook and loop closures, also for calves, thighs, arms to relieve muscle soreness and cramps. 4. 1 button control and 3 temperature settings for easy operation, allowing control of heating temperature and time. 5. Material: diving fabric 6. When using USB to plug into the USB port to get power, the output is about 5VDC. -Red button: temperature is 50 degrees Celsius, high temperature, can be used for a long time. -White button: temperature is 45 degrees Celsius, warm, can be used for a long time; -White button: temperature is 45 degrees Celsius, warm, can be used for a long time -Blue button: temperature is 40 degrees Celsius, not cold, not hot, can be used for a long time. 7. Fixed output of 7.9VDC when using the adapter. -Red button: temperature 65 degrees Celsius, high temperature, recommended use time 10 minutes -White button: temperature 55 degrees Celsius, relatively hot, recommended use time of 30 minutes. -Blue button: temperature 45 degrees Celsius, warm, can be used for a long time. 8. USB cable length 2 meters; adapter connection cable length 1.75 meters 9. Mesh bag size: 18 x 13.5cm (can be filled with moxibustion bag, ice pack, etc.)