Memorex 4GB Digital MP3 Player with Armband makes working out a breeze. The bright 1.5 inch color OLED display brings rich visual quality to your music while you're on the move. It plays MP3, WMA, WMA-DRM, WAV and JPEGs. Included is a rechargeable battery with up to 14 hours of audio play time so you can enjoy your music for hours on end. The MMP8595-BLK includes a digital FM tuner and MyDJ™ function powered by MusicIP, which allows you to generate dynamic playlists, scan your tracks with your ears instead of your eyes, and even match your playlist to your mood!