Men women old people arthritis rheumatism pain relief wrist warmer with 3 temperature control winter heated warm wrist bandage wrap support thermal therapy for joint soreness, swelling. A great Christmas/New Year/Holiday/Birthday gift for Grandpa, Granny, Dad, Mom, sisters, brothers, wife, husband, friends and yourself. Convenient to use and portable, you can use it at home, office, hotel, in the car when you are working, watching TV, reading, travel and driving. And also perfect for outdoor activities in cold seasons, such as Cycling, Biking, Motorcycle, Snowboarding, Snowmobile, Skiing, Camping, Hiking, Climbing, Hunting, Fishing, Ice-Fishing, Running, Walking, Trekking, Dance, Yoga and days out. Electric heater with USB cable, it can be plugged in any power supplies with USB port, such as power bank(5V/2A is recommended), car charger, laptop, desktop computer, etc. Come with a USB cables. Notice:This Wrist Wrap Need To Be Plugged To use, Not Retain Heat. Our heated wrist brace has 3 levels adjustable temp of 122?/ 140? / 158 ?, adjust according to your needs, safe to use, no worry it'll scald wrist. Electric heating will warm your wrist and enhance blood circulation reduce knee pain from the deep. Made of high elastic neoprene, skin-friendly, lightweight, warm and stretchy material. Adjustble with hook and loop fastner, one size fit most men women and teenagers. Notice:This Wrist Wrap Need To Be Plugged In To use, No Battery In The Wrap So Not Retain Heat.