The blanket material is good, but it doesn't generate a lot of heat.
Since it is a USB-C type, it is not compatible with auxiliary batteries or chargers these days. It is also more reliable than micro USB. When I checked, 10W was correct with 5V 2A, but it doesn't seem to be overheating enough to feel very warm. The heating wire is in the center of the wall. Rating : 2/4 Dec 17, 2021