Casio Casiotone CT-FS1BK
The Casio Casiotone CT-FS1BK offers a fresh approach to portable keyboard design, combining expressive sounds and intuitive controls with a distinctive monochrome black keyboard. Its streamlined appearance and compact dimensions make it equally at home in a living room, bedroom, creative studio or portable music setup.
The 61 full-size touch-sensitive keys respond to the dynamics of your playing, while Casio's AiX Sound Source provides 61 carefully selected tones including acoustic pianos, electric pianos, organs, strings and other instruments. With 64-note polyphony and a range of built-in effects, the CT-FS1 provides plenty of flexibility for practice, performance and creative playing.
Casio's Feel Sync technology offers a different way to interact with your favourite music. When used with the dedicated Feel Sync app and the included WU-BT10 Wireless MIDI & Audio Adaptor, the keyboard can adapt the notes you play to the harmonic content of a compatible song stored on your smart device. This allows beginners and experienced musicians alike to explore rhythm and musical expression in a more immediate and intuitive way.
The included WU-BT10 also provides Bluetooth Audio and MIDI connectivity. Music from a compatible smartphone or tablet can be played through the CT-FS1's stereo speaker system, while Bluetooth MIDI provides wireless communication with supported music and learning applications.
The built-in horizontal bass-reflex speaker system uses two 13 x 6 cm speakers powered by 2.5 W + 2.5 W amplification. Volume-Sync EQ helps maintain clarity and bass presence at lower listening levels, while the Surround function can create a wider and more immersive sound.
The CT-FS1 can operate from the supplied AC adaptor or six AA batteries, making it easy to use around the home or away from a mains supply. At just 4.5 kg, it is also light enough to transport easily between lessons, rehearsals and other locations.
With its distinctive all-black design, expressive AiX sound engine, Bluetooth connectivity and innovative Feel Sync functionality, the Casio CT-FS1BK is an ideal choice for anyone looking for an approachable, stylish and creative modern keyboard.
Hear, Try and Compare the Casio CT-FS1BK Keyboard in our showroom
Located in Leicester in the central Midlands and close to Coventry, Nottingham, Derby, Birmingham and Warwick we promise you that a visit to our specialist Digital Piano and Keyboard showroom will not disappoint. Try the full Casio range including the CT-FS1BK Keyboard and compare it with
Yamaha, Roland, and Korg all under one roof. Whatever your playing standard our knowledgeable and friendly experts will help guide you through the Keyboard buying process and make sure that you are buying the right instrument for your needs. As ex teachers we are ideally placed to advise and answer any questions you may have. Lifetime support and product tuition with ALL digital pianos.
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| Product Type | Portable keyboard |
| Number of Keys | 61 full-size keys |
| Key Colour | Monochrome black |
| Touch Response | 3 sensitivity levels, Off |
| Sound Source | AiX |
| Number of Tones | 61 |
| Maximum Polyphony | 64 notes |
| Feel Sync | Yes, with compatible Feel Sync app |
| Layer | Yes, 2 tones |
| Reverb | 24 types plus tone presets |
| Chorus | Yes, preset for each tone |
| Delay | Yes, preset for each tone |
| DSP | Yes, preset for each tone |
| Master EQ | 10 settings |
| Surround | Yes |
| Metronome | 0 to 16 beats, tempo 20 to 255 |
| Transpose | -12 to +12 semitones |
| Octave Shift | -3 to +3 octaves |
| Tuning | A4 = 415.5 Hz to 465.9 Hz |
| Speakers | 13 x 6 cm x 2 |
| Amplification | 2.5 W + 2.5 W |
| Bluetooth Audio | Yes, using included WU-BT10 |
| Bluetooth MIDI | Yes, using included WU-BT10 |
| USB | Micro-B and USB Type-A for WU-BT10 |
| Audio Input | 3.5 mm stereo mini jack |
| Headphones / Output | 3.5 mm stereo mini jack |
| Pedal Input | 6.3 mm TS jack for sustain pedal |
| MIDI | USB MIDI, 16-channel multi-timbre receive |
| Compatible Apps | CASIO MUSIC SPACE and Feel Sync |
| Power Supply | AD-E95100L AC adaptor or 6 x AA batteries |
| Battery Life | Approximately 3 hours depending on battery type and usage |
| Power Consumption | 7.5 W |
| Width | 930 mm |
| Depth | 258 mm |
| Height | 83 mm |
| Weight | 4.5 kg excluding batteries |
| Colour | Black |
| Included Accessories | AC adaptor, music stand, strap lock and WU-BT10 Wireless MIDI & Audio Adaptor |
Q: What is the Casio CT-FS1BK?
A: The Casio CT-FS1BK is a 61-key touch-sensitive portable keyboard featuring Casio's AiX sound engine, a distinctive all-black keyboard design, built-in stereo speakers, Bluetooth connectivity and Feel Sync technology.
Q: Does the Casio CT-FS1BK have touch-sensitive keys?
A: Yes. The CT-FS1BK has 61 full-size touch-sensitive keys with three selectable sensitivity levels plus an Off setting, allowing the sound to respond to how strongly or softly you play.
Q: Are all the keys on the Casio CT-FS1BK black?
A: Yes. The CT-FS1BK features a distinctive monochrome design where both the traditionally white and black keys are finished in black, giving the instrument its unique appearance.
Q: How many sounds does the Casio CT-FS1BK have?
A: The CT-FS1BK includes 61 AiX-powered tones covering acoustic pianos, electric pianos, organs, strings and a variety of other instrument sounds.
Q: What is Feel Sync on the Casio CT-FS1BK?
A: Feel Sync allows you to play along with compatible songs stored on your smart device while the system analyses the music and adjusts the notes you play so they remain harmonically connected to the song. It is designed to make musical participation accessible even to players without traditional keyboard skills.
Q: Can Feel Sync be used with Spotify, Apple Music or other streaming services?
A: No. Casio states that Feel Sync requires compatible music files stored on your smart device. Supported formats include WAV, AIFF and MP3, while streaming services are not supported by the Feel Sync app.
Q: When is the Casio Feel Sync app available?
A: Casio has announced that the Feel Sync app is scheduled to launch in Europe on 11 November 2026, with some European territories following at a later date.
Q: Does the Casio CT-FS1BK have Bluetooth?
A: Yes. The included WU-BT10 Wireless MIDI & Audio Adaptor provides both Bluetooth Audio and Bluetooth MIDI connectivity with compatible smartphones, tablets and applications.
Q: Is the WU-BT10 Bluetooth adaptor included with the CT-FS1BK?
A: Yes. The WU-BT10 Wireless MIDI & Audio Adaptor is included with the Casio CT-FS1BK, together with the AC adaptor, music stand and strap lock.
Q: Can I play music from my phone through the Casio CT-FS1BK speakers?
A: Yes. Using the included WU-BT10 adaptor, compatible Bluetooth devices can stream audio through the CT-FS1BK's built-in stereo speaker system.
Q: Does the Casio CT-FS1BK work with CASIO MUSIC SPACE?
A: Yes. The CT-FS1BK supports the CASIO MUSIC SPACE app, allowing compatible settings and functions to be accessed from a supported smart device.
Q: Does the Casio CT-FS1BK have built-in speakers?
A: Yes. The CT-FS1BK has two 13 x 6 cm speakers powered by 2.5 W + 2.5 W amplification, together with a horizontal bass-reflex system, Volume-Sync EQ and Surround functionality.
Q: Can the Casio CT-FS1BK run on batteries?
A: Yes. The CT-FS1BK can operate using six AA alkaline or compatible rechargeable Ni-MH batteries, with Casio quoting approximately three hours of continuous operation depending on battery type and usage.
Q: Can I connect headphones to the Casio CT-FS1BK?
A: Yes. The CT-FS1BK has a 3.5 mm stereo Phones/Output connection, allowing headphones to be used for private practice.
Q: Can I connect a sustain pedal to the Casio CT-FS1BK?
A: Yes. The CT-FS1BK has a dedicated pedal input for connecting a compatible sustain pedal such as the Casio SP-3 or SP-20.
Q: How much does the Casio CT-FS1BK weigh?
A: The Casio CT-FS1BK weighs approximately 4.5 kg excluding batteries, making it easy to move around the home or transport to lessons and rehearsals.
Q: Is the Casio CT-FS1BK suitable for beginners?
A: Yes. Its straightforward controls, touch-sensitive keyboard, built-in sounds, CASIO MUSIC SPACE compatibility and Feel Sync functionality make the CT-FS1BK particularly approachable for beginners, while still providing expressive features for more experienced players.
