1. Relieve knee pain related to arthritis, bursitis, strain, sprain, and meniscus tear;2. There is a built-in mesh bag, which can be put in an ice pack for cold compresses, or a moxa bag for moxibustion;3. It can be adjusted and fixed in place, with two bifurcated straps and hook and loop closure. It can also be used on calves, thighs and arms to relieve muscle pain and cramps;4. 1 button control and 3 heat settings, very easy to operate, can fully control the heating temperature and time;5. The USB cable is for portable use and can be plugged into any power source with a USB port, which is convenient to use;6. This knee electric heating pad is portable and easy to put in a suitcase or handbag. If you need a pair, please buy two About Shipping: All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances.Any questions, please feel free to contact us During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours, wish you a happy shopping Thanks for your cooperation and we'll make you feel satisfied.