Fangrui Product Details Winter Automobile Heating Seat Cushion 12v Automobile Lighter Electric Heating Universal Seat Cushion Features: After Receiving The Goods, First Install The Heated Seat Cushion On The Seat Fasten The Elastic Belt Of The Backrest The Hooks, Etc. Shall Be Fixed Without Obvious Displacement Large Displacement Is Easy To Wear The Electric Wire In The Cushion, Resulting In No Heat. The Heated Seat Cushion Should Be Placed Above All Seat Covers Direct Contact With Human Body Before Using The Heating Pad, Please Check Whether The Iron Sheets On Both Sides Of The Lighter Plug Are Bent If It Is Not Or Is, Gently Pry The Iron Plate To Bend The Point Before Continuing To Insert It Into The Lighter Mouth (because If The Iron Sheet Is Flat And Is Inserted Into The Lighter Port Without Adjustment, The Lighter Plug Will Have Poor Contact, Causing Heat, Burning And Melting Of The Plug Check It. After Inserting The Plug Into The Lighter, People Must Sit On The Heating Pad And Then Turn To The High Gear. After Heating For 2-3 Minutes, It Will Turn To The Low Lo Gear If You Continue To Open The High Gear, When The Temperature Reaches A Certain 60 Degrees, It Will Automatically Power Off If The Temperature Is Below 30 Degrees, It Will Be Reopened There Is Temperature Control Inside Keep Warm And Promote Blood Circulation Do Not Use The Heating Pad For More Than 30 Minutes Before The Car Starts If The Heating Pad Is Not Used When Getting Off The Vehicle, Please Turn Off The And Pull Out The Lighter Plug Product Product Includes: 1x Heated Cushion [product Material]: Knitted Fiber Composite+anti-skid Mesh+hot Filament Fiber [product Voltage]: 12v [product Power]: 35w-48w [product Line Length]: About 135cm [temperature]: 30 - 65 [product Application]: In Car/home/office [applicable Model]: Universal [installation Method]: Install The Elastic Strap Onto The Car Seat 1. Two Minute Fast Heating, Temperature, 30 - 65 2. High Quality Bakelite Plug, Built-in , Safe 3. Elastic Strap, Firm And Durable