TT8740  
-Tetrabanda, 850 / 900 / 1800 / 1900 MHz GSM / GPRS.
-2 Inputs and 1 audio output.
-Two digital inputs
-A control output
-Voice and SMS-enabled.
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    Evolution Series  
-Quad Band (850/900/1800/1900) GSM / GPRS Multislot Class 10-B-UDP and SMS Communications
-Strong team with great functionality and event generation.
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