Features: Quad Band EGSM/GPRS 850/900/1800/1900 MHz Compliant to GSM phase 2/2+ GPRS Class 10 Output power: Class4 2W for EGSM900 Class2 1W for GSM1800 Control via AT commands SIM application tool kit Supply voltage range: 3.1 to 4.5VDC Temperature range: -30 to +75 (operational functionality) -40 to +85 (storage temperature) Dimensions: 58.3x 32.2x 3.9mm Weight: 12g Voice: noise suppression and echo cancellation SMS: Text and PDU mode, Point to point (MO/MT), Cell broadcast DATA: Transparant and non transparant CSD up to 9.6kbps, USSD Interfaces: Interfaces: 2x UARTs, I2C, SPI, U.FL RF connector, 60 pin system connector, SIM card connector, keypad and LCD etc. Accessories GSM/GPRS antennas 60 pin system connect SIM card holder U.FL to SMA RF cable