High Sensitivity Atlas III GPS Receiver Centrality Atlas-III, dual-kernel. CPU 372MHz, DSP 248MHz WinCE OS 5.0 3.5" TFT LCD screen with touch panel Built-in internal GPS antenna Rechargeable Li-ion battery (1100mAh) Multimedia Player Audio formats (Audio Play): WMA9,MP3,WAV Video formats (Video Player): WMV,AVI,ASF Picture formats (Photo Player): JPG,GIF,BMP,PNG Text format (e-Book): TXT Dimension: 92x80x18 (mm) Compact and slim design