Lenovo M0520 Stereo 4W Spheric Red

2 x 2 W, USB, 90 - 20000 Hz, 520 g The Lenovo Speaker M0520 allows you to enhance and amplify sound by connecting to systems with USB2.0 and USB3.0 ports or audio output, and is fully portable.Features: Audio and power are delivered via USB, so no power adapters or audio cords are required Lightweight design (315 g/0.7 lb) allows users to carry it with them Dual Speaker support with 1+1 total watts of output Volume Up and Volume Down buttons for audio control directly from the speaker. Supports volume control through operating system audio controls Stylish and sleek design which complements Lenovo computers.