spec:

Aluminum casing
Wireless access to internet ( GPRS)
Based on Wavecom M1206B casing with Wismo Quik Q2403A module.
Dual-band 900/ 1800MHZ
3V SIM card slot
Standard RS232 or USB interface ( prolific driver for USB interface)
Double tone multi-frequency function ( DTMF)
Send and receive voice, data, fax, e-mail, SMS, MMS
Maximum transmitting speed 115KB/ s
Support AT command to make remote control ( GSM07.07 and 07.05)
GPRS Class 10
Antenna with high sensitivity
Always on-line
Conform with ETSI GSM Phase2+ standard
Output Power?
Class 4? 2W @ 900MHz?
Class 1? 1W @ 1800MHz?
Input voltage? 5V-24V DC ( not applicable for USB interface)
Input current? 1-2A
Working temperature ? -20 ? -+ 55 ?
Storage temperature: -25 ? -+ 70 ?
Size? 98* 54* 25mm
Weight? 130g