Brand: Casio Model: CTK-3500 Color: Black/White 48 Note Polyphony 61 Piano-Type Keys 400 built-in tones/100 Rythems Step-Up Lesson System No matter who (or where) you are, Casio’s CTK-3500 portable keyboard opens up a whole world of music with 400 high-quality Tones, and 150 built-in Rhythms including the all-new Dance Music Mode. 61 full-size, touch-sensitive keys respond to your playing dynamics, and let you express yourself naturally. Whether you're just starting out, or using batteries to write your next hit on a tour bus, the CTK-2550 delivers hundreds of Tones and Rhythms to jump-start your creativity. It's a perfect introduction to music-making, and a great-sounding way to have fun. SPECIFICATIONS Number of Keys: 61 (Piano-style) Touch Response: 2 sensitivity levels, Off Polyphony (maximum): 48 Number of Built-in Tones [Sound Source]: 400 Stereo Piano Tones: Yes Hall: Yes (Virtual Hall) Reverb: 10 Dance Music Effect: Yes Number of Built-in Rhythms: 100 World Rhythms: 46 [12/34] For Piano Play: 10 One Touch Preset: 100 Dance Music Mode: Yes Number of Built-in Dance Music Rhythms: 50 Number of Built-in Tunes [Exercise Phrase]: 60 Song Expansion (maximum number of songs): 30 Lesson Function: Lesson Lite, Scoring System, Voice Fingering Guide Lesson Part Select: Right Hand, Left Hand, Both Hands Connection to Chordana Play: Yes Key Transpose: Yes Tuning Control: Yes Metronome: Yes Auto Power Off: Yes Pitch Bend Wheel: Yes General MIDI: Yes PEDAL (SUSTAIN/DAMPER): Yes PHONES/OUTPUT: Yes AUDIO IN: Yes USB to Host: Yes Speakers: 3.9" x 2 Amplifiers: 2 W + 2 W Product Dimensions: 37.2" x 12.1" x 3.6" Weight Weight: 3.4 Kg Features The CTK-3500 lets you make music anywhere with battery power, or use the included AC adapter. It's compact and lightweight, yet rugged and reliable. With 400 Tones and 150 Rhythms, the CTK-3500 delivers a huge variety of musical exploration. You can listen via the built-in speakers, or connect headphones for quiet playing. he CTK-3500's all-new Dance Music Mode lets you create and remix electronic dance music quickly and easily. Select from 50 styles of EDM, and use the lower keys to choose different variations of drum beats, bass lines, and synth parts. You can even add filter, flanger, gate, roll, low-fi, and other effects to polish your tracks. Connect to your iOS or Android device to use the free Chordana Play app, which uses the CTK-3500’s display to show you how to play your favorite songs. Just download your favorite MIDI files, connect your device's headphone output to the CTK-3500's audio input, and explore an endless library of music. You can even transfer songs to the keyboard, and learn them when your device isn't connected (some file limitations apply).