http://www.rolandconnect.com/product.php?p=br-80
Small enough to fit in your pocket, the BOSS MICRO BR BR-80 is the ultimate new portable recording and jam-along tool for guitarists and other musicians. It's equipped with three modes to create, record, and perform your music: an eight-track MTR (Multi-Track Recorder) mode; an eBand mode for onstage backing tracks and phrase training; and a Live Rec mode for instantly capturing high-quality stereo recordings.