One of the best notebook computer speaker bars you can find. Perfect to boost quality sound for movie watchers and music listeners on the go. Powered by a USB connection and a 3. 5mm audio input. It can even work with just a USB Battery charger/power supply - and any other music device with headphone out jack. It includes a handy travel pouch, and its slim portable design makes the CA-2880 The Perfect compact speaker for taking on trips. Front firing drivers make for a solid Stereo listening experience, and the clamp is suitable for nearly all laptop, notebook, or tablet screens. Compatible with Mac, PC, Microsoft Surface, Chromebooks, and USB capable tablets.