<p><strong><span style="font-size:22px">Features:</span></strong></p><p><span style="font-size:18px">High quality rotary switch.Hot-swappable (no need to reboot computer).</span></p><p><span style="font-size:18px">Super mini size：Easy to place and suitable for your desktop and office.</span></p><p><span style="font-size:18px">Plug and play：No power supply and other software required; Won&#x27;t affect sound quality.</span></p><p><span style="font-size:18px">Analog signal maximum support 2V p-p input and output.</span></p><p><span style="font-size:18px">Input and output frequency range: 20Hz ~ 20KHz.Use standard audio cable, input transmission distance up to 8 meters, output transmission distance up to 8 meters.</span></p><p><strong><span style="font-size:22px">Main functions:</span></strong></p><p><span style="font-size:18px">① Select audio input between (IN/OUT)A/B/C/D with 1/4 switch knob and get one output;</span></p><p><span style="font-size:18px">② Select audio output between (IN/OUT)A/B/C/D to receive one input;</span></p><p><br/></p><p><strong><span style="font-size:22px">How to use:</span></strong></p><p><span style="font-size:18px">① connect 4 audio sources (like CD player / computer/Phone/MP3) to 1/4 ports and 1 audio output (like speakers) to IN/OUT port;</span></p><p><span style="font-size:18px">② connect 1 audio source to IN/OUT port and 4 audio outputs to 1/4 port.</span></p><p><br/></p><p><strong><span style="font-size:22px">Note:</span></strong></p><p><span style="font-size:18px">Only three-segment headphones are supported (four-segment headphones are not supported)</span></p><p><span style="font-size:18px">Only one input can be played at a time.</span></p><p><br/></p><p><strong><span style="font-size:22px">Package Include:</span></strong></p><p><span style="font-size:18px">1*4 Port3.5mm Audio Switch Switcher</span></p><p><span style="font-size:18px">1* 3.5mm Audio cable</span></p><p><span style="font-size:18px">1* User manual</span></p><p></p><p><br/><br/><br/></p>