Samsung? SGH-E590s is a tri-band GSM and EDGE capable device also includes Bluetooth and a square 1.79″ 262k color screen with a 220×220 pixel resolution. Up to 90MB of on board memory is available with a memory expansion slot included. An MP3/AAC/AAC+/e-AAC+/WMA capable music player is featured, and USB 2.0 connectivity makes loading the device with tunes easy.