1.Qua-Band EGSM850, EGSM900, GSM1800, and GSM1900.

GSM 850 MHz band

Transmit, Receive: 824-849MHz, 869-894MHz

Output Power: 500 mW (+27 dBm) /2W (+33 dBm)

GSM 900 MHz band

Transmit, Receive: 880-915MHz, 925-960MHz

Output Power: 500 mW (+27 dBm) /2W (+33 dBm)

DCS 1800 MHz band

Transmit, Receive: 1710-1785MHz, 1805-1880MHz

Output Power: 400 mW (+26 dBm) /1000 mW (+30 dBm)

PCS 1900 MHz band

Transmit, Receive: 1850-1910MHz, 1930-1990MHz

Output Power: 400 mW (+26 dBm) /1000 mW (+30 dBm)

2.EDGE multi-slot class 12 (up to 4TX, 4RX, 5 total), up to 216kbps

3.External removable antenna and inner antenna

4.Operating System: Windows 98/ME/2000/XP/VISTA

5.Control via AT-Command (GSM 07.07, 07.05 and enhanced AT Commands)

Interface: mini USB Port

6.SIM application toolkit

7.Supply voltage range 5V

8.Low power consumption

9.Size: 68 x 41 x 11 mm

10.Weight: 30g

11.Operation Temperature: -20 °C to +60 °C

12.Restricted Operation temperature: -25 °C to -20 °C and +60 °C to +70 °C