We are Sunrise Tech Group Limited based in Shenzhen , China. We are member of companiess.com since March, 2008. Our business is related to Telecommunications industry and we specifically deal in wireless modem ,wireless card,wireless router,laptop accessories. Please find our product details below:WM199A-4 EVDO USB MODEMWM199A-4 EVDO USB MODEMSelling Point:◇Small EVDO Rev.A USB Stick Modem◇High speed Wireless Broadband◇Auto installationKey Features:Frequency band: CDMA 800 /1900MHzUSB 2.0 Full SpeedRev.A: Data transmission up to 3.1Mbps (Downlink)Data transmission up to 1.8Mbps (Uplink)Rev.0：Data transmission up to 2.4Mbps (Downlink) Data transmission up to 153.6Kbps (Uplink)AT Command controlVoice servicesSMS servicesWireless InternetMicro SD Card SlotAuto RunOperating systems:Windows® 2000, Windows® XP, Windows® VistaEnvironmental Specifications: Operation Temperature: -2055℃Storage Temperature: -3065℃Humidity: ≤93%Mechanical:Size: 86x25x12mmWm199-1 EVDO USB MODEMSpecifications·Separate UIM card and compliant with the CDMA800MHZ standard ·Supporting IS95A/B, CDMA20001X and CDMA2000 EVDO rev 0 ·Data functions: Packet data, asynchronous data, bi-directional messaging ·Working band: 800MHZ (transmitting: 824 MHZ 849 MHZ; receiving: 869 MHZ894MH) ·Data rate: Max. 2.4 Mbps downlink and 153 Kbps uplink in CDMA2000 EVDO network; Max. 153 Kbps downlink and 153 Kbps uplink in CDMA2000 1X network ·Receiving sensitivity: -104 dBm ·Power parameters: Working current < 700mA; sleep current < 50mA; working voltage 5VDC ·Working temperature: Storage temperature: -30°C +75°C; working temperature: -20°C +50°C ·Hardware interface: USB interface ·Supported OS: Windows2000, Windows XP, Windows VISTA·Dimensions: 77.5x26 x12mm (38g) ·Voice: 13K QCELP, 8K EVPCThank you for taking the time to go through our business profile. If there are any question, inquiry or comments, please feel free to contact us.