100% Polyester Fleece to Sherpa Serta - Rest easy with a brand you can trust. Serta’s heated blanket is ETL certified and independently tested to meet the highest safety standards. With decades of experience and hands on expertise, Serta is a champion of comfort for all Cozy & Soft - Premium reversible fleece to sherpa heated throw. Ideal for winter season features the sherpa reverse. Perfect size to snuggle on the couch or while working in the office or home 10 Heat Settings & Auto-Shut Off - Features smart technology to keep your bed warm, equipped with 10 heat settings. And a 1-12 hour auto shut off safety timer. That you can set in it from 1 hour increments up to 12 hours max. Input Voltage: 120V/60Hz 1 Heated Blanket - 84"W x 77"L Twin & Full Size comes with one controller, while larger sizes come with 2 controllers Easy Care - Conveniently machine washable and comes with 5 year warranty. DO NOT LEAVE CONTROLLER COVERED WHEN IN USE TO AVOID OVERHEATING