The roland cube street ex battery powered stereo amplifier is an all purpose on the go amplifier or pa system. Thanks to its compact size and battery powered design this model is perfect for both street performers and travelling musicians expect easy operation and effortless transportation. With its 50w of power and stereo speaker system you can enjoy a clean and punchy sound that suits larger crowds. Its selectable power allows modes allow for up to twenty hours of operation with eight aa batteries and two cube street ex units can be linked together for more sound coverage if you need. Its perfection doesnt stop there. Four channels are included for a wide variety of tonal possibilities alongside an i cube link that lets you plug in your phone for backing music whilst you perform. It doesnt get better than the roland cube.