In 1980, the original Casiotone CT-201 allowed anyone to make music, regardless of skill level or budget. With the CT-S1, its spiritual successor, we've raised our own bar. The Casiotone CT-S1 is a great-sounding, stylish, ultra- portable keyboard designed for anyone to enjoy playing. Its incredible sound quality makes it an ideal musical partner for beginners and seasoned players alike, and its sleek, portable design makes it fun to play anytime, anywhere. *Includes power supply and music rest.
61 full-size keys with touch response
Available in black, white or red to match your style
Stereo grand piano plus 60 other AiX-powered Tones
Powerful bass-reflex stereo speaker system with surround effect
Easy one-button recorder
Strap pins for playing anywhere
Class-compliant USB-MIDI connects to free Casio Music Space app
Optional WU-BT01 Bluetooth MIDI/Audio adapter
Optional 6xAA battery power (AC adapter and music rest included)
 
Now It's Personal
Musician sitting on futon playing red CT-S1 with over the shoulder strap
The CT-S1 reflects your style in more ways than one. Choose the color that best matches your home, your look, or your life in general. Then, express yourself with 61 studio-quality, stage-ready Tones. And with a keyboard that looks and sounds this good, there's no need to keep it on a stand. Put in 6 AA batteries, attach a strap, and wherever you're standing becomes center stage.
Basically Everything
Red CT-S1 close up of button being pressed with indicator light
Like many of our Privia and Celviano digital pianos, the CT-S1's streamlined design features simplified controls that allow you to focus on selecting a Tone and practicing or performing without distraction. A convenient metronome button helps you keep time, and an easy one-button recorder lets you capture ideas.
The Heart of a Champion
Keyboardist playing music on red CT-S1 together with guitarist in a relaxed living room setting
The CT-S1's AiX Sound Source delivers sound quality that you'd expect from a keyboard costing hundreds, if not thousands more. Power on the CT-S1, and you'll be presented with a dynamic, expressive German concert grand piano placed in a virtual concert hall. You'll also find essentials like electric pianos, organs, strings, synths, and more, with Advanced Tones adding complex layers that react to your playing. A collection of vintage keyboard sounds is also included, featuring recreations of timeless, sought-after keyboard instruments. We've even included classic Casio sounds from our VL, VZ and CZ series.
Small Size, Huge Sound
Red CT-S1 keyboard being played on a coffee table, close up of Casiotone logo near the edge of the CT-S1
There are three ways to experience the CT-S1's amazing sound quality at its best. First, the bass-ported stereo speaker system delivers eyebrow-raising punch and clarity throughout the entire volume range. Second, plug in a good set of headphones for personal play. Third, press the SURROUND button, and the sound from the speakers will place you right in the middle of your music.
More Than Meets the Ears
Red CT-S1 keyboard being played on a coffee table, connected to a tablet on attached music stand
A world of possibility lies behind these keys. You can choose virtual concert venues, layer tones together, add delay and EQ, adjust temperaments, and much more, right from the front panel. The FUNCTION button takes you far beyond the ordinary, and every CT-S1 comes with an easy guide that shows you exactly how to unlock the CT-S1's full potential.
Connected to Your World
Back of a red Casio CT-S1 close up of connected dongle 
The microUSB port connects your CT-S1 to any PC, Mac, iOS or Android device with no drivers or installation needed. Use the free Casio Music Space app to learn to play your favorite songs with downloadable MIDI files. With the optional WU-BT10 Bluetooth MIDI/audio adapter, you can even connect wirelessly to your favorite devices to control them via MIDI, or to use the CT-S1 as a Bluetooth speaker.