This Energy System Tower 7 True Wireless will take your favourite music to the next level. This speaker model is what's known as being active, which means it has an amplifier and thus plays directly from itself. For connecting to other devices, the Energy Sistem speaker can do so via MicroSD. An intuitive way to connect to other devices to play music is via its Bluetooth wireless connectivity. You can easily connect and play music wirelessly right from your phone or computer. You can also use the MicroSD card slot to play stored music directly on the speaker. To easily control the settings, the speaker features a built-in display, that'll show you everything you'll need to know. You can switch through songs with the practical remote controller.