2.4 W 2.0 channels Number of drivers: 2 90 - 20000 Hz USB connectivity Black Performance and convenience in a compact, stylish notebook speaker set.Enjoy rich, digital USB sound, edgy design, and convenient volume controls. No batteries required. A single USB cable supplies both audio and power. The Logitech® S-150 speaker system is the perfect audio companion to your notebook.- 2.0 USB digital speaker system- Advanced digital USB for premium sound clarity- Light, compact design for portability- No batteries or power supply required (single USB cable for both audio and power)- Satellite base designed for greater stability on the desktop- Built-in, easy-access controls for volume and mute- Digital-power indicator- Brown-box packaging Loudspeakers Driver diameter 5.1 cm Number of drivers 2 Speaker placement Tabletop/bookshelf Audio output channels 2.0 channels Audio Frequency range 90 - 20000 Hz RMS rated power 2.4 W Performance LED indicators Yes Recommended usage PC Product colour Blac