S150 Digital USB Speaker System 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 Travel bag for easy transport* 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 Technical Specifications Total RMS power: 1.2 watts RMS (0.6 watts per satellite) Frequency response: 90 Hz–20 kHz Drivers: 2-inch dynamic drivers Connectivity: USB cable (1.20) Power source: Notebook via USB Power indicator: Amber LED