The Sony Ericsson Z520 is a quad-band, clamshell phone with both internal and external screens and an ingenious caller-ID using perimeter flashing lights combined with music. This Bluetooth

-enabled phone comes in a variety of color schemes with additional Style-Up

covers.
The 4x digital zoom VGA camera takes still or video images when the phone is open or closed. The Z520 has two display screens: the main 128x160 pixel internal TFT display with 65k color and the 101x80 pixel STN sub-display with 4k color on the outside of the clamshell. The phone supports Infrared and Bluetooth connectivity, 16MB memory and Mobile Java

3D gaming.