Intellitouch OHP7000 MP3 & CD Autoload Digital Player for PBX/KSU Telephone Systems Provides A Hard-Wired Solution In Areas Where Wireless Fm Transmission May Present A Problem 128 Mb Of On-Board Memory Approximately 8 Hours Of Mp3 File Content Storage Loads Audio Into Digital Flash Memory For Continuous Playback Via An Integrated Cd Autoload Mechanism  Or User Can Connect It To Pc Via Usb To Add New Content Or Update Firmware Optional Playback Source Via Any Off-The-Shelf Sd Card