In the Spring 2009 line of AU by KDDI, in addition to the Sony Ericsson S001, Sony Ericsson comes Premier3 a terminal within the range Asian Walkman.
The Sony Ericsson Premier3 is absolutely incredible 3-inch screen with a resolution of 854 x 480 pixels (WVGA) LCD screen and a small 1.7-inch external. Likewise, the Sony Ericsson Premier3 has a 3.2MP camera with autofocus and LED flash, support for CDMA and GSM (it might work in the world), video on demand LISMO, support for microSD cards (comes with a card 2GB) and dedicated buttons for functions Walkman.
I do not understand why Sony Ericsson launched Premier3 is 50MB internal memory, expandable with only the memory support is limited to 2GB microSD, no ability to support microSDHC cards. Sony Ericsson's autonomy Premier3 seems tiny compared to Sony Ericsson terminals around the world, with just over 3 hours talking and 200 hours standby.
So yes, if memory and limited battery found guilty, the Sony Ericsson Premier3 seem to have an excellent sound system with technology Clear Stereo and Clear Bass, along with a powerful external speaker.