88 full-sized scaled keys are included, with "Tri-Sensor" technology hammer-action technology helping to emulate the feel of a real acoustic piano. Layer and split functions are also supported, enabling users to assign separate voices to each half of the keyboard as well as assign multiple voices to the same keys with pressure-sensitive selection. 180 rhythm tracks are included that cover a wide variety of popular western and world patterns, with SD card support enabling additional content to be imported from a computer source. USB and MIDI I/O connectivity also make the PX-330 a suitable option for digital audio workstation integration, allowing users to control VSTs and other "Soft Synth" patches for optimal feel and interactivity. In addition, this model is equipped with a pitch bend wheel for on-the-fly tremolo manipulation with over a full-step of movement available in each direction.