1、You can extend the computer power switch to the Desktop. 2、55 meters length is enough for you to use. 3、With two USB 0 interface, super convenient for you. 4、With an audio interface and a microphone interface. 5、Can be used in Internet cafes, families, company, etc. Features: You can extend the computer power switch to the Desktop. 1.55 meters length is enough for you to use. With two USB 2.0 interface, super convenient for you. With an audio interface and a microphone interface. Can be used in Internet cafes, families, company, etc. Specification: Audio Port: 1 Microphone Port: 1 USB Port: 2 Length: 1.55m / 61.0inch Size: 6 x 6 x 3cm / 2.36 x 2.36 x 1.18inch Package Weight: 170g Quantity: 1pc Package included: 1 x Desktop PC Switch Button Problem: 1.The audio port does not work. How should it be operated?                      2.Why isn't there any input?Solution: 1.Check the plug and whether the cable of the port is inserted properly.    2.Because the pin was not inserted correctly.