USB 3.0 Switch - Share 3 USB devices, such as a keyboard, mouse, scanner, printer, speaker, headphone, or other USB devices, between two computers, along with audio and microphone jacks. Metal shell - We use high-quality Metal alloy to provide our customers with an excellent premium look, , great drop resistance, strong build, and robust corrosion resistance. USB Switch selector-This device supports one-button manual switching, It also has a volume adjustment knob. Short press the knob to select the USB channel, and long press the knob to activate the mute switch (turn the knob to enter the mute state). Increased Work Efficiency - This device saves space and increases work efficiency due to its seamless switch speed. Additionally, a USB power cable ensures stability when connecting to high-power USB devices. Attention: Please note that this model is a USB switch, not a KVM switch. 1、Connect your computer/laptop of the USB switch selector using two USB cables (Type A to B cables). 2、Connect the power supply cable to the USB switch. 3、Connect your USB devices, speaker, microphone, and wired remote. 4、To set up your audio for headphones or speakers, open your sound settings and select [Speakers(USB Audio Device)] as the sound output. 5、You are all set! Thank you!