The Alto TX412B is a dream come true for any busker or performer tasked with bringing audio to any space where power is limited. This battery-powered 600W speaker is a cable-free solution to high-quality sound without an outlet in sight. Thanks to an impressive battery life, the TX412B can handle playlists and sets up to 7-hours long. For those looking to use the speaker to project two different sources of audio such as a DJ who might need to make announcements during their set or a Wedding MC introducing the bride and groom over music, look no further - the TX412B can run two different inputs simultaneously with grace and clarity.