Logitech Multimedia Speakers Z200 with Stereo Sound for Multiple Devices, White Two 2.5" drivers (one active, one passive) per speaker pump out 10 watts peak power for clear stereo sound with added deep bass. Use with multiple devices: Plug in two devices at the same time, like your smartphone plus tablet or laptop, via a 3; 5mm audio input plus auxiliary line Fingertip controls: On-speaker volume, power and bass controls for quick and easy audio adjustments Handy headphone jack: Listen to music, movies and games in total privacy High-quality acoustics: Tested and tuned at Logitech's state-of-the art audio labs