RIYIN USB Powered Soft Heated Shawl Winter Electric Warming Heating Blanket Pad (Black) Size:79*46cm/ 31"*18" The size of the heating element is 12*20cm/4.7*7.8" Temperature = 100 F - 113 F The USB Heating Blanket is a soft plush velour blanket surrounding a heating pad. Can be used to cover knee, wrapped waist, draped over the shoulders, seat cushion, heat. Note it need take more than 30 mintures to heat, also the heating isn't obvious you need put it above your shoulder to keep the heating, then you can feel the heating