... etc. 3. Operation system: Win CE 5.0, CPU: Dual Core 500MHz, Support word, Excel, PPT, PDF,WiFi module: Optional, ... LCoS projection technology.Specification:CPU: ARM Construction Dual Core 500 MHz Multimedia Processor Input: 2.4G wireless Keyboard and wireless mouse, USB ... Language: Chinese, English USB Speed: High speed USB 2.0, Up to 4MB/S Battery: 2100mAh Rechargeable lithium-ion Battery ( Least ...