Creative Labs ZEN Stone Plus With Built-In Speakers. Player media type: HDD, Total storage capacity: 2 GB. Display resolution: 64 x 64 pixels. Continuous audio playback time: 20 h, Battery technology: Lithium Polymer (LiPo). Weight: 90.7 g, Depth: 17.7 mm, Height: 35.5 mm. Dimensions (WxDxH): 55.8 x 17.7 x 35.5 mm, Connectivity technology: Wired, Media types supported: AAC/MP3/WMA/Audible 2,3,4