<p><b>Features:</b></p> <ul> <li>2-IN-1-OUT (switch audio sources) / 1-IN-2-OUT (switch audio outputs)</li> <li>Input (3.5mm) connections: Computer / Phone / Music player. etc.</li> <li>Output (3.5mm) connections: Active speaker / Headphone / Amplifier. etc.</li> <li>High quality volume control knob; Smoothly control the volume</li> <li>Mute button; Mute the device with just one key; Very useful for special conditions</li> <li>A / B button; Can conveniently select the device you want to use as the audio input or output</li> <li>No power and additional software required</li> <li>Hot-swappable (no need to reboot devices)</li> <li>Compact and super mini size; Easy to place and suitable for your desktop and office</li> </ul> <p><b>Parameters:</b></p> <ul> <li>Interfaces: 3 * 3.5 mm jack</li> <li>Knob and key: 1 * volume knob; 1 * A/B selector; 1 * mute botton</li> <li>Dimensions: L82 * W55 * H20 mm</li> <li>Weight: 100g</li> </ul> <p><b>Packing List:</b></p> <ul> <li>1 * audio selector (audio cable not included)</li> </ul>