3-speed temperature adjustment: the electric blanket shawl has three temperature settings, with fiber heating wires carbon which can heat up quickly and freely adjust the temperature to meet different using needs. 4 heating zones: the electric heated blanket has four heating zones that can be fully covered, giving you sufficient warmth, fluffy and thick, and comfortable to wear. Machine washable: unplug the external battery, remove the smart thermostat and machine wash or by hand to keep the electric blanket clean and hygienic. Multi-use: The portable outdoor USB heated blanket can be used as a vest , shawl, knee pad, cushion blankets, etc., and can be used in different situations. Wide applications: USB heated blanket can be used as a perfect practical gift for birthdays , Christmas, Thanksgiving and other special scenes, suitable for outdoor camping, daily life, office learning, libraries and more.