Development Boards &amp; Kits - AVR Adafruit Feather 32u4 FONA<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> Quad-band 850/900/1800/1900MHz - connect onto any global GSM network with any 2G SIM (in the USA， T-Mobile is suggested) </span></li><li><span class="a-list-item"> Make and receive voice calls using an external 8Ω speaker + electret microphone </span></li><li><span class="a-list-item"> Send and receive SMS messages </span></li><li><span class="a-list-item"> Send and receive GPRS data (TCP/IP， HTTP， etc.) </span></li><li><span class="a-list-item"> Scan and receive FM radio broadcasts (yeah， we don't exactly know why this was included but it works really well) </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51Ws7KtouTL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/611WmuYka6L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51bzunjTxSL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51isFb-gNLL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/414gipS4wtL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/610XNmu%2BoZL.jpg" noproxy>