UTK Far Infrared Natural Jade and tourmaline Heating Pad is a perfectly Infrared Therapy Solution to relieve muscle tension where people experience it —back & lower back & shoulders & waist & hip & legs & arms & knee & feet. Also, you can sit on it or lie on it. <br> <b>PRODUCT DESCRIPTION</b> <br> Versatile Size 21"X31": perfect for treating sore muscles in your back, shoulders, abdomen, legs, arms, and more.<br>Precise Heat Settings: Smart digital controller adjusts heat (103°F-159°F by 1°F increments) to your comfort level.<br> Precise TIME Settings: Smart digital controller adjusts time settings from 0-240 minutes by 15 minutes increments.<br> Memory Function: The “MEM” button remembers your favorite heat and time settings.<br> 4-Hour Auto Shut-Off: Conserves energy and prevents burns caused by excessive heating.<br> 10-Foot Extra-Long Cord: Makes it easier to use from the comfort of your bed or favorite chair<br> Premium Travel Bag: Keeps the heating pad protected in between uses.<br> <b>PRODUCT SPECIFICATIONS:</b> <br> Pad Size: 21” X31”<br> Heating area (area with stone covered) : 27''X13.5''<br> Weight of Pad: 6lbs<br> Power: AC110~120V<br> Pad Material: Soft PU leather (both sides),108 Individual Natural Jade Stones, and 42 Individual tourmaline Stones<br> Auto Shut-Off Time: 240 minutes<br> <b>HEAT SUGGESTIONS:</b> <br> Warm-temperature range (103°F~109°F) for overnight using<br>Low-temperature range (110°F~119°F) for 3-4h sessions<br>Medium-temperature range (120°F ~129°F) for 2-3h sessions<br> Medium-High-temperature range (130°F ~139°F) for 1-2h sessions<br> High-temperature range (140°F~149°F) for 30-60 minute sessions<br>Very-High-temperature range (150°F ~159°F) for 30-minute sessions