USB Audio Interface for Computer, USB to 3.5mm Audio Adapter, External Sound Card with Headphone Premium Noise Cancelling with an independent sound card chip to filter noise current and enhance audio fidelity. Delicate inner material designed for high fidelity audio transfer. Reasonable size with a short cable design for flexible use and minimal space occupation. Low traveling burden with a mini size, making it easy to carry around. Multiple Systems Plug&Play. Color: Black Material: Aluminum Alloy+PVC Package Contents: 1*USB Sound Card Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.