<ol type="1">
<li><p>Sentry BT250 Bluetooth Headphones w/ mic<br />
<a href="https://www.amazon.com/Wireless-Rechargeable-Stereo-Earbuds-Bluetooth/dp/B015NFWDX8" class="uri">https://www.amazon.com/Wireless-Rechargeable-Stereo-Earbuds-Bluetooth/dp/B015NFWDX8</a></p></li>
<li><p>F-Droid - free open source apps for Android<br />
<a href="https://f-droid.org/en/" class="uri">https://f-droid.org/en/</a></p></li>
<li>Audio Recorder from F-Droid<br />
<a href="https://f-droid.org/en/packages/com.github.axet.audiorecorder/" class="uri">https://f-droid.org/en/packages/com.github.axet.audiorecorder/</a><br />
Features:
<ul>
<li>Mute incoming call audio while recording</li>
<li>Variety of format encoding
<ul>
<li>ogg (default)</li>
<li>wav</li>
<li>flac</li>
<li>m4a</li>
<li>mp3</li>
<li>opus</li>
</ul></li>
</ul></li>
<li><p>X-plore Android file explorer<br />
<a href="https://play.google.com/store/apps/details?id=com.lonelycatgames.Xplore&amp;hl=en_US" class="uri">https://play.google.com/store/apps/details?id=com.lonelycatgames.Xplore&amp;hl=en_US</a></p></li>
<li>Audacity
<ul>
<li>Amplify tool</li>
<li>Bass and Treble tool</li>
</ul></li>
</ol>
