Casio61-Key Casiotone Vintage Portable Keyboard Red (Model: CT-S1)

About

The Casio Casiotone CT-S1RD is a sleek and portable 61-key digital keyboard blending classic simplicity with modern sound technology. Powered by Casio’s AiX sound engine, it delivers rich, expressive tones from acoustic piano through electric and synthesiser styles, all housed in a lightweight body that’s perfect for home, studio, or on-the-go playing. It’s ideal for beginners and intermediate players seeking great sound quality, easy operation, and versatile features like recording, layering, and Bluetooth MIDI support (with optional adaptor). Its minimalist design also makes it a stylish addition to any space.

Product Features

• 61 full-size velocity-sensitive keys with touch response (3 levels + off) for expressive playing control.
• AiX Sound Source for rich, dynamic tones.
• 61 built-in tones, including advanced and classic sounds.
• 64-note maximum polyphony for smooth performance.
• Integrated stereo speakers with Horizontal Bass Reflex system for fuller sound.
• Built-in effects: Reverb, Chorus, Delay, DSP, and Master EQ.
• Layer function to combine tones for a richer sound.
• Tone Memory: save favourite setups for instant recall.
• Metronome and transpose functions - great for learning and practice.
• MIDI recorder to record and playback your performance (up to ~40,000 notes).
• USB-to-Host MIDI connectivity and optional Bluetooth MIDI/audio with an adapter.
• Audio IN and headphone/output jacks for flexible connections.
• Powered by an included AC adapter or six AA batteries for portable play.

Product Specifications

Keyboard

• Keys: 61 full-size with touch response (3 levels + off)
• Sound Source: AiX
• Maximum Polyphony: 64 notes
• Number of Tones: 61 (incl. Advanced & Classic)

Sound & Effects

• Reverb: 24 types
• Chorus, Delay, DSP, Master EQ
• Volume-Sync EQ and Surround sound features

Performance Functions

• Layer (Upper1/2)
• Tone Memory
• Metronome
• Transpose: –12 to +12 semitones
• Octave Shift: -3 to +3

Recording & MIDI

• MIDI Recorder: 1 song, ~40,000 note capacity
• General MIDI support

Connectivity

• PHONES/OUTPUT: 3.5 mm stereo mini jack
• AUDIO IN: 3.5 mm stereo mini jack
• USB TO HOST (micro-B)
• USB TO DEVICE (for optional Bluetooth adaptor)
• Pedal (sustain) jack

Speakers & Amplifiers

• Speakers: (13 cm × 6 cm) × 2 with Horizontal Bass Reflex
• Amplifier Output: 2.5 W + 2.5 W

Power

• AC Adapter (included): AD-E95100L (DC 9.5 V)
• Battery: 6 × AA (optional)
• Battery Life: ~3 hours (using alkaline)

Dimensions & Weight

• Size: ~930 × 258 × 83 mm
• Weight: ~4.5 kg (without batteries)

Warranty

• 6 months

What's in the Box

• 1x Casio Casiotone CT-S1RD keyboard (61-key)
• 1x AC adapter (AD-E95100L)
• 1x Music stand
• 1x Strap lock