HR-688
Physical Characteristics
Weight:	0.32kg
Input:	handwriting input; Touchscreen; Keyboard
Power:	Ni-ion battery 2000 mAh
Display:	TFT backlit color VGA (240× 320 pixel) touchscreen
Interface Ports:	RS232; USB 1.1 device
Audio:	Handset mode; speakerphone mode (via internal speaker and microphone) ; volume control
Performance Characteristics
CPU:	Intel Xscale 400MHZ Processor
Operating System:	Microsoft Windows CE 4.2
Memory:	Flash 64MB: SDRAM 64MB
User Environment
Operating Temp:	﹣200C to 500C
Storage Temp:	﹣250C to 500C
Relative Humidity:	5% to 95% (non-condensing)
ESD:	± 8kv air discharge, ± 4kv direct discharge