Built with a dual-stomp design, built-in chromatic tuner/expression pedal and nearly 50 unique emulations for amps, cabinets, and stompboxes, the DigiTech BP90 Bass Multi-Effects Processor shrinks an entire rig down to the size of a Taco Bell Big Box. Perfect for beginner players familiarizing themselves with effects and modeling units, the BP90 is also an excellent practice tool thanks to its 40 onboard drum patterns for solo rhythm section jamming.