The Plextalk Portable Recorder, model PTR2, is a digital talking book player and recorder designed for use by individuals who are blind or have low vision. This unit can record DAISY 2.02 books and audio file or music CDs, and can play DAISY titles, music and audio file CDs, and CF cards. When connected to a computer, it can be used as a CD-RW or memory card drive. The unit comes with Plextalk Recording Software (PRS) for recording, editing, and finalizing audio only DAISY 2.02 books. Radio programs, TV programs, lectures, and conference proceedings can be recorded on a CD or CF card. Data can be compressed for recording on a single CD, and the unit can be used to make backup copies of DAISY or music CDs or cassette tapes. Other functions include alarm, sleep timer, power-on timer, memo, talking watch, and talking calculator. POWER: Uses rechargeable lithium ion battery or an alternating current (AC) adapter (included). DIMENSIONS (HxLxW): 50 x 205 x 167 millimeters. WEIGHT: 940 grams.