... name:SIM900 GPRS GSM wireless module Quad-band 850 900 1800 1900MHz GPRS module SIM900 is Global available ... an industry-standard interface, the SIM900 delivers GSM/GPRS 850/900/1800/1900MHz performance for voice, SMS, Data ... compact demands of design. General features * Quad-Band 850/ 900/ 1800/ 1900 MHz* GPRS multi-slot ... to GSM phase 2/2+ – Class 4 (2 W @850/ 900 MHz) – Class 1 (1 W @ 1800/1900MHz ...