Check the listing for details. Compact USB Powered Mobile Mini Speaker System, Manhattan 161435, SK-IU02. Condition: New. Listed at 16.95 USD. Compact USB Mobile Mini Speaker System, Manhattan 161435These compact speakers delivers rich, full-range sound from notebook computers, netbooks, portable CD/DVD players and other USB-equipped mobile media devices. Solid, well-built enclosures help re-create a balanced, full-spectrum frequency response. The built-in USB cable quickly connects without special drivers, batteries or an external power supply to easily share music, improve presentations or enjoy movies, games and other multimedia content. Features:Mobile speakers w/ 1x USB power cord and 1x 3.5mm stereo input cordFull-range stereo sound and compact size optimized for mobile listeningEasily connects to notebook computers and other USB-equipped devicesDual external speakers improve stereo separation and sound fieldSelf-powered and easy to install – require no batteries or power adapterIdeal to enjoy and share music and other audioShielded to prevent distortion and maintain clear, crisp soundFrequency response: 90 Hz – 20 kHzSignal-to-noise ratio (S/N):