... SAMSUNG-S3C2442,400HMZ2.Support: windows CE 5.0 OS3.7" 16:9 Touch screen WVGA Display, 800*480 pixels4 ... DDR SDRAM memory 64M, nandflash 128M, 5. built-in Bluetooth, 6.WIFI 802.11b/g for Wireless Internet ... port,1*earphone jack,1*mic jack, 9.built-in GPRS module (optional),10.SIRFIII GPS is optional,11 ... . Build-in 5000mAH lithium-poly battery,work about 6-8 hours ...