Seeed Studio GPRS Arduino Shield V2.1
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<b>[Product Information]</b><br>
<ul>
<li>Compatible with standard Arduino and Arduino Mega</li>
<li>Quad band support: 850/900/1800/1900MHz</li>
<li>Supports TCP/UDP protocols</li>
<li>Full control via AT commands set: Standard - GSM 07.07 & 07.05 and Enhanced - SIMCOM AT Commands</li>
<li>2-in-1 headset jack</li>
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