Lightweight, clip-on design.Speaker is easy to attach, easy to remove, easy to take with you. Simply mount the speaker to any laptop or notebook.The speaker stays securely in place when you carry your laptop from room to room Both sides-of-monitor design also focuses the sound directly toward you Music sounds full and balanced best;Volume adjustment give you control of your music;Plug a single USB cord into your laptop and you/'re No software or external power supply needed;Included cord powers the speaker and gives you pure digital sound instantly Enjoy quality sound from your laptop wherever you go, with this laptop speaker connected to it. Light weight, the clip-on design of this speaker allows you to fix it onto the laptop, netbook or even place it anywhere . Specification: Speaker System:2.0 Speaker Power:Yes Power Rating:2W+2W Stereo Speaker Unit:2 X 40mmNdFeB high-quality speakers 4 ohm Dimension:60 ;30 ;35mm, cable 1.7m The thickness of can clip to a computer:About 25mm Power Input:USB Supply~5V, 500MA, 50Hz Input Connection:3.5mm Audio Interface 3.5mm audio Colour:Black Material:ABS Size:12.5*9.5*5CM Package Contents: 1 * Speaker Only the above package content, other products are not included. Note: Light 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.