One forstreet is the first battery powered amplifiers of the Acus One family. It has the same sound quality of other Acus One family amplifiers, even when used without mains power. Ideal for street musicians, that usually play outdoors where it is not possible to use mains power. This amp has superb Audio quality, a compact size and high energy efficiency. One could play for more than 7 hours in all circumstances with a fully charged internal battery).Oneforstreet is the complete package.Equipped with two separate inputs (one Mic-Line and one Line), with controls for Gain/Volume, 3-Band EQ, Effect Send and Master Volume. The dedicated AUX input (with independent volume) allows for connecting of an mp3 player or iPod. electronically balanced direct output is also fitted.