Features:  1. It offers users a low profile, stylish sound solution that matches the styling of various monitors with convenient USB power.  2. The headphone jack that allows users to enjoy audio from their favorite games, music and movies, without sacrificing valuable desk space.  3. The USB-powered device makes it easy to use your speaker through USB port, eliminating the need for batteries or a power cord.The cable is about 1.2 meter (4 ft) long. If you want to make it longer you should get the extension cords connected.  4. You can simply plug in the speaker to an open USB port in your computer and get started using the drive without the need to install any software.  5. It provides high performance quality sound so you’ll be able to enjoy your speakers as soon as you plug it in. This sound bar is designed for computer according to the computer power which means 3Wx2 will be suitable.    Specification:  Item: Sound Bar Speaker;  Color: Black;  Connector: USB Power;  Dimension: 15.7*2.4*2.2inch;  Application: For Computer, Laptop, Notebook, iPad, Smartphones;    Package Included:  1 * USB Powered Sound Bar Speaker for Desktop PC Computer;  1 * USB Power Cable;  1 * Audio Input Cable;  1 * Microphone Audio Cable