Archos Gmini XS100 4GB mp3 player Black. Player media type: HDD, Total storage capacity: 4 GB. Display: LCD, Display diagonal: 38.1 mm (1.5 "), Display resolution: 128 x 128 pixels. Audio formats supported: MP3, WAV, WMA. Headphone connectivity: 3.5 mm. Battery technology: Lithium-Ion (Li-Ion)