... )wifi, bluetooth,printer 2)optional gps, gprs,barcode scanner, rfid,camera 3)4000mah battery 4)SDK,Sourcecode free SPECShandheld pda with ... -in mic; Speaker and 3.5 mm stereo headphone jack; MP3 stereoQuad band 850/900/1800/1900MHz,CDMA-EVDO or WCDMA ...