USB Electric Shoulder Brace Heated Knee Massager Vibration Massage Black Support Strap with Adjustable Three Levels of Heating TEMPERATURE MODE HEATING-Shoulder heating pad easy tooperate. -Equipped with USB power cable Or it can be used at home with 5V2Aadapter plug it into the wall socket to use. -Long press the button for 3 sec.onds to turn it on/off,short press the button to switch mode. Great for use when you’re watching TV or reading a book on. -This heated shoulder wrap is adjustable and can be worn on either shoulder or knee,The strap can the sofa at home. -Be adjusted in length, so it’s perfect for any body shape. -The shoulder and kenn heating pads for rotator cuff pain is made of high-quality neoprene material,durable for the wrap will automatically shut off to prevent overheating. -This shoulder and knee heating pads is a perfect gift for those who need it. It’s comfortable.