DPI/GPX 4GB DIGITAL AUDIO PLAYER BLUE DIGITAL AUDIO: MP3 WMA (NON-DRM) / MW151BU / Product Name: MW151BU 4GB Flash MP3 Player| Product Type: Flash MP3 Player| Features: Volume Limiter| Flash Memory Capacity: 4 GB| Display Screen Type: LCD| Audio Formats: MP3| Audio Formats: WMA| Bluetooth: No| USB: Yes| Headphone: Yes| Number of Batteries Supported: 1| Battery Size Supported: AAA| Battery Run Time: 8 Hour| Color: Blue| Height: 1.3| Width: 2.8| Depth: 0.8| Package Contents: MW151BU 4GB Flash MP3 Player| Package Contents: Mini USB to USB Cable Package Contents: 1 x Set of Stereo Earbud| Limited Warranty: 90 Day