Single power supply.
Power button to control on and off.
USB interface.
Dual Band: 900/1800Mhz.
Tri Band: 850/1800/1900MHz, or 900/1800/1900Mhz.
Quad Band EGPRS 850/900/1800/1900 Mhz.
Send MMS.
Auto answer function for voice and data collection with the remote device.
AT command to control and program.