trong aria-hidden="true">7.2.1.</strong> Introduction to Bluetooth</a></li><li class="chapter-item expanded "><a href="../../chapter_7/7.2/7.2.2.html"><strong aria-hidden="true">7.2.2.</strong> Bluetooth Concepts</a></li><li class="chapter-item expanded "><a href="../../chapter_7/7.2/7.2.3.html"><strong aria-hidden="true">7.2.3.</strong> Bluetooth Connection</a></li></ol></li><li class="chapter-item expanded "><a href="../../chapter_7/7.3/index.html"><strong aria-hidden="true">7.3.</strong> Wi-Fi Network Co