The Casio CTK-3000 is an affordable instrument with a 61 Key Piano Style Touch Sensitive Keyboard, 400 total onboard Tones, 150 Rhythms and Digital Effects. Packed with great features such as Casio's famous Step-up Lesson System, audio inputs for a MP3 player, USB port for MIDI implementation and a pitch wheel for additional expression over sounds. Features 61 standard-size keys and 2 sensitivity levels, Off Touch Response 48 notes (24 for cetain tones) Maximum Polyphony 400 Built-in Tones 10 Reverbs Digital Effects 0 to 12 Semitones Pitch Bend Range 110 Built-in Songs 20 notes Music Challenge L, R, LR Lesson Part Repeat, Voice Fingering Guide, Note Guide, Performance Evaluation Functions 150 Built-in Rhythms Accomp ON/OFF, Start/Stop, Synchro/Ending, Variation/Fill-in, Normal/Fill-in, Intro Rhythm Controller 0, 2 to 6 Beats per Measure 30 to 255 Tempo Range 150 One Touch Preset Type B USB Port 9V DC Power Jack 10cm x 2 Features