Technical Details Name: External USB Sound card Connection by USB 2.0 Cable Play and pause, next/previous, microphone mute key Three USB ports (Hub-Function)
Three audio output ports: FR, RL, Coaxial, Toslink One Microphone jack, two headphone jack Compatible with Windows XP/7/8/ 8.1 /10, MacOS 10.9 and newer How to use this
USB external sound card:
1. There are two mute keys, one for speaker mute, another for microphone mute.
2.
Volume adjustment: Turn the USB volume knob clockwise to increase the volume, and turn the knob counterclockwise to decrease the volume.
3. Previous song /
Next song: You can switch between the previous song and the next song by pressing the previous and next buttons.
4. Supports common speakers, earphones, microphones and 3.5 mm jack audio devices. 5. A good replacement for a faulty sound card or audio port of your computer. 6, Supports multiple EQ sound effect switching.
Package contents: 1 x external sound card 1 x USB cable 1 x instruction manual