Screen size and product specifications:

The length of the diagonal screen: 1.8 Inch =4.572 cm.

Product specification 91mm (long) x 43mm (wide) x 32mm (high)

Note: this MP4 is only suitable for use in these systems compatible computer: Windows98/SE/ME/2K MacOS10， Linux2.4.2， XP system;

But in VISTA， windows7 download things is not compatible with this note，please dear ~