Roland CUBE Street EX Battery Powered 50W 2x8" Guitar Combo with 8 Free Universal Electronics AA Batteries Innovative new Roland technology provides 50 watts of stereo power from eight AA-size batteries Selectable output power modes to optimize battery life for different performing situations (Max: 50 W/5 hours; Normal: 25 W/10 hours; Eco: 10 W/20 hours*) Portable, lightweight design (7.4 kg/16 lb. 5 oz.) with durable ABS injection-molded cabinet Powerful, full-range stereo sound with dual 8-inch woofers and 2-inch tweeters Four independent channels for connecting a variety of mics, instruments, and audio devices