# Digital synthesizer Casio CT-S300

**URL:** https://aio.lv/en/product--casio-ct-s300c7--3890801
**Data updated:** 2025-12-29 13:51 (EET)
**Category:** DJ Controllers & MIDI keyboards
**Manufacturer:** CASIO
**Manufacturer code:** CT-S300C7
**EAN:** 4971850314950
**Warranty:** 3 Years
**Availability:** Available for order
**Price:** 177.49 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 146.69 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--casio-ct-s300c7--3890801

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | Wednesday | free |
| Pickup points | 22.06.2026 | 1.99 EUR |
| Courier delivery to door | 22.06.2026 | 5.06 EUR |

## Summary description

The Casio CT-S300 is a versatile digital synthesizer featuring 61 keys, reverb sound effects, and a powerful 5W RMS rated power. It operates on batteries or DC power, with an impressive battery life of up to 19 hours. The LCD display provides clear visibility, while its compact dimensions (930mm x 256mm x 73mm) make it portable and easy to use for musicians on the go.

## Long description

The Casio CT-S300 is a compact 61-key digital synthesizer designed for portable practice and performance. With dimensions of 930 mm x 256 mm x 73 mm and a weight of only 3.3 kg, it runs on batteries or DC power and offers up to around 19 hours of alkaline battery life. The instrument features piano-style keys with touch response, a pitch bend wheel, a full dot LCD, and built-in oval speakers with optimized equalization for balanced sound at various volume levels.
Advantages
The CT-S300 combines a slim, lightweight body and a convenient top grip for easy transport, while its strengthened oval speakers and EQ optimization provide surprisingly full sound for a compact keyboard. A simple, intuitive interface with a dial and home button reduces complexity. Additional features include Dance Music Mode with 12 Dance Music Voices, a My Setup button for saving user presets, USB-to-host (micro B) connectivity for use with smart devices or computers, and 5W RMS power output for clear playback.
Suitable for (tasks / use cases)
Beginner and intermediate keyboard practice at home or on the move
Portable performances and busking
Music production and sketching ideas with a computer or smart device via USB
Playing dance and electronic styles using Dance Music Mode and Voices
Learning and practicing songs with the Chordana Play app and built-in demo songs
Key specifications
Keys: 61 piano-style keys with Touch Response
Power: Battery operation (alkaline) up to approximately 19 hours; DC adapter input supported
Speakers: Oval speakers (13 cm x 6 cm) with strengthened magnets
Output power: 5W RMS
Connectivity: USB to host (micro B)
Dimensions: 930 mm x 256 mm x 73 mm
Weight: 3.3 kg
Special features: Pitch bend wheel, Dance Music Mode, My Setup button, full dot LCD, Chordana Play app compatibility
How to use
Power the CT-S300 using batteries or the optional DC adapter. Use the home button and dial to navigate the full dot LCD menu and select tones, rhythms, or Dance Music Mode. Play with dynamic expression using the piano-style keys and Touch Response; apply the pitch bend wheel to add guitar- or sax-like bends. Save preferred tones and rhythms to the My Setup button for quick recall. To connect to a smart device or computer, use a commercially available USB A-to-micro B cable and open the Chordana Play app to display scores or MIDI files for guided practice.
Usage recommendations
For best portable performance, use quality alkaline batteries and enable the EQ optimization function when playing at low volumes. When connecting to a computer or smart device, use a reliable USB cable and check device settings to allow MIDI/audio communication.

## Specifications

| Feature | Value |
|---|---|
| Weight | 3.3 kg |
| Battery type | AA |
| Keyboard number of keys | 61 |
| Number of batteries supported | 6 |
| Height | 73 mm |
| Width | 930 mm |
| Depth | 256 mm |
| Product colour | White, Black |
| RMS rated power | 5 W |
| Headphone outputs | 1 |
| Built-in speaker(s) | Yes |
| Volume control | Buttons |
| MIDI out | Yes |
| Foot pedal input | Yes |
| MIDI in | Yes |
| Power source type | DC, Battery |
| Operating time | 19 h |
| Built-in display | Yes |
| DC input voltage | 9.5 |
| Display type | LCD |
| Number of speakers | 2 |
| Maximum polyphony (notes) | 48 |
| Sound effects | Reverberation |
| Reverberation effects quantity | 10 |
| USB ports quantity | 1 |
| Product type | Digital synthesizer |
| Preset programs quantity | 77 |
| Tap tempo switch | Yes |

## FAQ

### How much does the Digital synthesizer CT-S300 cost, and is it available for purchase?

The price is 177.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 6 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on Wednesday at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Digital synthesizer CT-S300 be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All CASIO products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized CASIO service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### Where can I download the instructions for Digital synthesizer CT-S300?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/3890801/65622989_large.webp