This is something I have not seen before. Might be interesting to check out.
http://www.fender.com/products/search.php?partno=2354200000The ultimate bass playing experience! The B-DEC 30 is an entertainment center and a fantastic training/teaching tool.
Combining performance loops covering most musical styles with teacher loops to help develop and refine the "bass-ics," the feature-loaded B-DEC 30 provides hours of fun while you naturally improve the skills that will make you the best bass player you can be!