This Energy System Tower 7 True Wireless speaker will tune your music experience up a notch. This speaker is an active model, which means it has a built-in amplifier , and it therefore plays without needing additional sources. The speaker has crisp sound, thanks to its broadband design. Get excited to hear crisp sounds in the frequency of 20 Hz to 20000 Hz. For the connection of other devices, the Energy Sistem speaker uses 3,5 mm Jack, MicroSD, RCA - Cinch and USB. An easy way to connect to other devices to play music is via this speaker's Bluetooth wireless technology. You can play your favourite music wirelessly from your smart device. The speaker reaches a total power of 100 W. You can also use the MicroSD card slot to play music from this speaker. For easy control, the speaker features an integrated display that'll show you everything you'll need to know. You'll appreciate that it has a remote control.