1in screen size. Stores up to 2000 tracks. Up to 20 hours audio playback. Rechargeable via AC/DC adaptor. Rechargeable via USB port. Size (H)4.65, (W)4.45, (D)1.5cm. LCD display. 2.0 USB port. Portable solid state. 4GB. MP3/WMA compatible. Repeat, shuffle function. USB cable supplied. Software supplied. Minimum PC specification: Windows 2000/XP/Vista. In ear headphones (supplied). Built-in battery. Weight 35g.