Function: 1. You can extend your computer's power switch to your desktop. 2. The length of 1.55 meters is enough do use. 3. With two interfaces USB 2.0, super convenient for you. 4. With audio interface and microphone interface. 5. It can be used in internet cafes, families, businesses, etc. Specification: Characteristics: You can extend your computer's power switch to your desktop. The length of 1,55 meters is enough do use. With two USB 2.0 interfaces, very convenient for you. With audio interface and microphone interface. It can be used in internet cafes, families, businesses, etc. Specification: Audio jack: 1 Microphone Port: 1 USB port: 2 Length: 1,55 m / 61,0 inch Size: 6x6x3 cm/2.36x2.36x1.18 inch Package Weight: 170g Quantity: 1 piece The package includes: 1 x Desktop Computer Switch Button Problem: 1. The audio port is not working. How should it be handled? 2. Why doesn't ma any input? Solution: 1. Check the plug and whether the port cable is inserted correctly. 2. Because the pin was not inserted correctly.