The Prompter People PROP-15HB-15MM-SB is a ProLine Plus High Bright 15" (Sled Base) 15mm KIT with a soft bag. These monitors are self-reversing and can display prompting with the included Pro Version PC and Mac software or use an app like PowerPoint, their monitors do the flip for you. PROLINE PLUS teleprompters ship pre-assembled with standard beamsplitter models from 12" to 19" shipping in a padded carry case, with wireless controller, Pro PC & Mac software on USB and a free download is available at no extra charge. their exclusive sled design allows the camera rail to be quickly removed for easy storage and travel. PROLINE PLUS 15mm Rail-Mount models can be used as a Free Standing just by removing the 15mm Block extrusion and adding a stand and adapter, or as a Sled Mount by adding the long Sled to the Back of the Teleprompter with the Lowboy and (If needed) riser.