1. SPECIFICATIONS: (1)Suitable Network:GSM/ GPRS/EDGE (900/1800MHz) (2)External Interface:PCMCIA II (3)Max Transmitting Rate:384Kbps (4)Frequency band: EGSM 900: 880~915MHz 925~960MHz DCS 1800: 1710~1785MHz 1805~1880MHz 2.KEY FEATURES: (1)Full integration,brand-new chipset, excellent stability (2)High compatiblity,high speed,low power consumption (3)Unique,tiny and patent design 4.FUNCTIONS: (1)Internet Browse (2)SMS (3)Call Record (4)Connection Flow Record (5)Phone Book Management (6)Support VPN/VPDN 5.ENVIRONMENTAL SPECIFICATIONS: 1.Operation Temperature: -20~55℃ 2.Storage Temperature: -30~65℃ 3.Humidity: ≤93% 4.Vibration (non-operating): 15g peak, 10~500Hz 5.Dimension: 86(L)*54(W)*3.5(H)mm 6.Weight: ≤35g 6.OPERATING SYSTEMS: Windows 2000,Windows XP, Windows Vista