●ETL FCC Dual Certification -- US AC 120V@60Hz, 100watts*2, electric blanket king size 100*90 inches with dual temperature controllers, 4 heating levels from 86℉ to 113℉ ●Longer Heating Wires -- The electric heating material is made in Japan nickel-chromium alloy PTC+NTC double helix structure wires, the length is 71feet (21.6meters) * 2 cover larger area ●Flexible Use -- Each power cord is 14.4feet (4.4meters) long provides plenty of length to connect to outlets without poking at night, and the whole cord include controller is detachable ●Maintenance ? Remove the power cable and control, just put the electric blanket king size itself in the washer. Use cold or lukewarm water only and set it on a slow agitation cycle. Then hang it to dry, do not put it in dryer machine ●Comfortable -- Smooth flannel on both sides for optimal comfort, better thermal preservation, more power saving. Even if it is not heated, it can be used as a weighted blanket and it will be very warm either ●Long Lasting -- We honor all of our heated blanket so every purchase is protected. If at any time you experience an issue, please don’t hesitate to email us through order’s detail page