USB Earbuds with microphone: built-in microphone picks-up your voice loud & clear. It provides high quality communication and is durable and stable over a long period of time. Its excellent sound quality gives users nice experience. USB Laptop headphone adopts an ergonomic design, and it feels comfortable even when used for a long time. Computer earbuds with microphone equipped with a 6.5 FT（2m）long USB cable which allows for a lot of freedom of movement. No drivers required. Mute function: When you need to mute, please keep pressing the button"0", and then release it when you want to restore the mic. Volume control:press "+"/"-" to adjust the volume Audio adjust: Press "0" 1 time for pause, 2 times for next track, 3 times for previous track. Warm Tip: 1. Please promptly clean up the dust impurities on the computer USB interface to avoid poor contact caused by the headset connected to the computer. 2. After plugging in the headset, please do not immediately put on the headset, wait a few minutes, and then use the headset after the static electricity imported by the computer into the headset is discharged.