Vosstronics 4GB Singmaxx 520. Total storage capacity: 4 GB. Image formats supported: JPEG, Video compression formats: AVI, Audio formats supported: MP3, WAV, WMA. Compatible memory cards: microSD. Display: LCD, Display diagonal: 61 mm (2.4 "), Display resolution: 320 x 240 pixels. Interface: USB 2.0, Connectivity technology: Wired