X-keys USB 3 Switch Interface
<div style="text-align: left;"><strong>[Product Information]</strong>
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<li><span class="a-list-item"> Compatible with Windows， Mac， Linux， and Android </span></li>
<li><span class="a-list-item"> Up to three switches via 3.5 mm TRRS port </span></li>
<li><span class="a-list-item"> Connects to any USB port just like a USB keyboard </span></li>
<li><span class="a-list-item"> Accepts 3.5 mm mono， stereo， or TRRS plugs </span></li>
<li><span class="a-list-item"> Any contact closure can be converted to a USB HID command </span></li>
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