Kickstart every party with the club-like sound of this one-box system. EXTRA BASS™ brings the low-end power for rumbling EDM basslines, with lighting effects for a festival atmosphere. Stream from your digital music library in an instant when you make a One-touch connection via NFC. EXTRA BASS – This is for the bass-lovers. Hit the EXTRA BASS button for deep, punchy sound, and lose yourself as the rhythm flows through you. A built-in sensor activates the top two tweeters automatically, so you can enjoy stereo sound from your speaker system upright or horizontal.