VD500 Specification               Function1, wirelesses receive and send email2, wireless view internet3, wireless data transport4, move working and administrator5, construct enterprise big customers move data and vpn applianceSound communication6, Chinese &English SMS message receive and group send 7, Use AT command to control for long-distance8, Talk or call urgently 9, The fastest speed down row 230.4K, up row 84.6K 10, Sound code method: 13K QCELP (IS-733), 8K EVRC (IS-127)11, Message service (IS-637-A): support English letter and Chinese, supply edit message content:Word and PDU12, Point to point

Work parameter Item                           Performance1, Model                        XD5002, Exterior Size     69.5(L)*45(W)*12.4(H)3, Interface:                  USB2.04, Wireless Frequency: 800MHZ Transmit RF: 824 to 849MHZ                                            Receive RF 869 to 894MHZ5, Receiving Sensitivity:-106dbm6, Storage Temperature: -30 to +707, Operating Temperature:-20 to +608, Relative Humidity:5-85%RH9, Work Voltage:3.0V-3.6V10, Work Current:Send520MA (MAX)                        Receive150MA (MAX)                        Dormancy18MA (MAX)11, Support Protocol:CDMA2000 1X*RTT, IS707-A, FCC IS-95A compatible12, Operating System:Windows 2000/XP/VISTA