This document is the owner's manual for Roland CUBE-15 Guitar Amplifier. It introduces the main features of the product, including 15 watts output power, built-in 20 cm speaker, two sound modes (CLEAN and LEAD), four distortion effects (OVERDRIVE, DISTORTION, METAL, and METAL STACK), three-band equalizer (Bass/Middle/Treble), recording output jack and external input jack.