The Cyber Acoustics CA-2880 USB Powered Speaker Portable Design offers a great way to listen to music and enjoy sound for your movies while you're on the go. The stereo speaker is powered by USB, so you won't need to connect it to any external power supply. The dual 1.5" drivers offer superb sound, and the integrated clip makes it easy to attach to your laptop. The speaker has a convenient desktop volume control and on/off switch. Additionally, the speaker comes with a travel pouch for maximum portability.