Icarus Sense G2. Diagonal: 152.4 mm (6 "), Technology: E Ink, Gray scale levels: 16 levels of grey. Document formats supported: ePub, FB2, HTML, PDF, RTF, TXT, Audio formats supported: AAC, FLAC, MP3, OGG, WAV, WMA, Image formats supported: BMP, JPG. Internal storage capacity: 2 GB, Maximum memory card size: 32 GB. Interface type: USB 2.0. Battery life: 8000 pages, Battery technology: Lithium-Ion (Li-Ion), Battery capacity: 1500 mAh