Samsung YP-U3 1GB Black. Player media type: flash-media, Total storage capacity: 1 GB. Display: OLED, Display resolution: 128 x 64 pixels. Audio formats supported: ASF, MP3, OGG, WMA. Continuous audio playback time: 15 h, Battery technology: Lithium Polymer (LiPo), Battery recharge time: 1.5 h. Weight: 22.8 g