With the B1X Four, Zoom has a handy little effects wonder bag in its program. The number of effects is quite abundant: 70 effects, 5 of them simultaneous, 9 amp simulations, 64 drum patterns, a 30 second looper and a chromatic tuner. Own effect creations can be stored on 50 user memories. A mini-jack input is available for recording backing tracks and playalongs. A USB port is available for firmware updates, power supply and connection to the Zoom Guitar Lab software.