1. LED indicator light show the working status.
2. Support for common speaker or headphones. Microphone recording.
3. Free to switch speaker and headphone modes.
4. Directly use USB port, universal plug and play.
5.USB External Driver-free Sound Card
6.Extending 3 Output Ports through one USB port
7.Adjustable Volume. With one external volume adjustment button , easy to control the volume according to your needs.
8.Wide Compatibility, Support TRS / TRRS mode.
Material: Engineering Material
Input Interface: USB2.0
Output Interface: Microphone Interface, 4PIN Headset Interface, Earphone Interface
Earphone Indicator: Blue
Microphone Indicator: Red Light When Silence
Other Functions: Silence switch, Volume adjustment
Supported System: Windows/Mac OS/Linux
Cable Length: 10cm
1 x USB Sound Card
1 x User manual