Casio PX-160 Privia Touch Sensitive 88 Key Tri Sensor Scaled Hammer Action Keyboard Digital Piano with 18 Built-In Tones Package with Pedal and Piano Stand Grand Sound System Tri-Sensor Scaled Hammer Action II Keyboard Dual Headphone Outputs on Front Class compliant USB connectivity also allows the PX-160 to be used with Mac or Windows and function as a MIDI controller. The PX-160 offers 128-note polyphony and includes 18 built-in instrument tones including pianos, electric pianos, strings, organs, a vibraphone and a bass. The song recorder allows you to record a song via MIDI with up to 2 tracks.