Tried this after a full day working in the yard and it provided great soothing warmth to my shoulder and upper arm. Has 3 heat settings — I use level 2 and it feels just right. It's flexible enough to wear while doing things and very comfortable overall. Quite nice!
Very comfortable to wear and the heat feels really good. Even at the highest setting it doesn't get too hot or uncomfortable. Once I figured out how to wrap it on my shoulder it was easy to put on and take off. Does require a USB power source but my couch has USB connections so no problem. Will definitely come in handy after working outside or playing sports!
Bought this for my son's baseball team to keep the pitchers' arms warm and it works great! The only downside is needing a battery pack attached, but if you already have batteries for a heated jacket it's no big deal at all. Highly recommend for athletes!