This model has been especially designed to provide you with powered battery support for evacuating or rescuing people both down or up the stairs. The Escape-Chair® VOLT is powered by battery and has an easy to understand control panel with display that is located on the operating handle. After unfolding the Escape-Chair® VOLT it is immediately ready to use. These products are also known as mobile stair lifts or mobile stair chairs. Can be operated by just one person by simply pushing the operating handle down in the direction of the stairs.