Supported Formats: WAV, MP3, WMA, audible playback. Internal Storage: 1GB. Display Type: LCD Dimensions: 1 (W)" x .65 (D)" x 3.1 (H)" New sleek, compact design World’s First “direct connect” USB MP3 player with Support Media: microSD expansion slot for additional memory capacity and to provide portability of music Cable-less “like an Express” battery charging and USB 2.0 connectivity of interface. Four-line, bright OLED screen Digital FM tuner, with FM recording (if applicable) Voice recording with a built-in microphone Up To 15-hour, rechargeable lithium polymer battery life Simple to use controls for fast device interface navigation Supports most subscription music stores