Lizusidtsy Basic functions: Sound effects: Intelligent software 5.1 channels sound fields, create a of environment and distance feeling, processing karaoke input effects. Interface: USB interface, no external power supply, can be used for USB2.0 version, backward compatible with USB1.1 version, plug and play, can be used for any deviceDesktop PC and laptop with USB port Suitable for DVD, digital products, music, games and online use. Product parameters: Product name: 5.1 Channel transparent external sound card Product interface: USB2.0 Support channel: 5.1 channels Material: plastic colour: green Package Contents: 1 x 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.