Insulated container warms wipes from the top down. This insures that you warm the wipes that you use. This unique construction also helps prevent the browning and drying out of wipes. Re-enforced top designed for "Original" and new "Pop-Up" style wipes. Holds over 80+ baby wipes. Low voltage for added safety. Best of all-no hidden charges like expensive "freshening pillows" that need to be purchased and added every 3 months.