Intenso 4GB Music Waver. Player media type: flash-media, Total storage capacity: 4 GB. Display: OLED, Display resolution: 128 x 64 pixels. Audio formats supported: MP3, WMA, ASF. Continuous audio playback time: 12 h, Battery technology: Lithium Polymer (LiPo). Dimensions (WxDxH): 52 x 36 x 13.5 mm, Connectivity technology: Wired, Standard interfaces: USB