Stream audio wirelessly Upgrade the sound of your computer, tablet or any other Bluetooth-enabled device with the Logitech Z407 2.1 Wireless PC Speakers. It connects using Bluetooth, USB and 3.5 mm jack to up to three devices at the same time. And you can easily change sources using the wireless control dial. Powerful 2.1 speaker system This powerful 80 W 2.1 speaker system enhances your media with rich, clear sound and strong bass. Adjust the bass level to suit your tastes and enjoy your movies, games and music just how you like them. Simple controls You can easily adjust the volume by turning the wireless control pod. The button in its centre is multifunctional and you can pause, change songs or enter bass adjusting mode using different amount of presses.