The compact CUBE Street EX amp is the ideal unit for traveling solo musicians. It features 50 watts of power and a stereo sound system with dual woofers and tweeters to deliver a big sound in a small unit. This highly portable amp runs on eight AA batteries for up to 20 hours, so you can play amplified music at outdoor festivals and other locations where outlets are scarce. Despite its lightweight design and small size, this amp is housed in a rugged ABS injection-molded cabinet to withstand the wear and tear of touring. With its four independent channels, the CUBE Street EX offers versatile connections for a variety of mics and instruments. Select from Clean, Crunch and Lead guitar tones to suit each tune you play. Separate EQ and reverb controls let you fine-tune your audio quality with ease. If you need more sound coverage in larger performance venues, you can connect two CUBE Street EX units by using the Stereo Link jacks. The Rechargeable Amp Power Pack offers a convenient reusable power solution for select Roland mobile amplifiers that support battery operation, including the CUBE Street EX, AC-33 Acoustic Chorus, and other models. The one-piece design pops easily into the back of the amplifier, eliminating the need to fuss with multiple AA-size batteries. But the benefits don’t stop there—you also get up to twice the runtime over standard batteries, and the amplifier delivers output power and SPL that’s nearly equivalent to using the AC adaptor. This package includes Roland Cube Street EX Battery Powered Stereo Amp (Black) Roland BTY-NIMH/A Rechargeable Amp Power Pack for Select Amplifiers