These powered, wired Logitech stereo speakers (they have a built-in amplifier) are in mint condition. You can plug a computer, iPhone, CD player, or any other device into them for superb sound.
• Dynamic, real-time bass equalization to maximize low frequency response while minimizing distortion.
• 3.5mm auxiliary input to connect devices.
• Customize your audio balance with easy-to-reach tone and volume controls.