Logitech MX Sound – Premium Bluetooth Speakers. Every element of the MX Sound has been meticulously chosen, from the high-end speakers to the premium materials and the motion-activated, backlit controls, to provide an outstanding audio experience in a beautiful design. The sound output works via Bluetooth or a wired connection, and you can seamlessly switch between audio sources – simply pause one audio source and play the other with a press of a button. With a peak power of 24 watts and excellent speakers, it delivers perfectly balanced audio output that reproduces sound exactly as the artist intended. Adjust the volume and pair Bluetooth devices with a light touch of the motion-activated, backlit controls on the front of the speaker.