MARVTOWN 88-Key Portable Roll-Up Piano

1. Safety Instructions

Please read and understand all safety instructions before operating this product. Keep this manual for future reference.

• Do not expose the unit to extreme temperatures, direct sunlight, or high humidity.
• Avoid placing heavy objects on the keyboard.
• Keep the unit away from water and other liquids. While the silicone keyboard is waterproof, the control panel is not.
• Use only the provided charging cable and a compatible 5V/1-2A adapter.
• Do not attempt to disassemble or modify the unit. This will void the warranty.
• Keep out of reach of small children to prevent choking hazards from small parts.

2. Package Contents

Verify that all items are present in the package:

• MARVTOWN 88-Key Roll-Up Piano
• USB Type-C Charging Cable
• Instruction Manual
• Music Note Stickers (optional accessory for learning)

3. Product Overview

The MARVTOWN 88-Key Portable Roll-Up Piano offers a full-size keyboard experience in a compact, flexible design. It features a silicone keyboard and a control panel with various functions and connectivity options.

Figure 3.1: MARVTOWN 88-Key Roll-Up Piano, illustrating its compact rolled form and full extended layout.

Key Features:

• 88 Standard Keys: Provides a full piano range for comprehensive practice and play.
• Portable & Foldable: Made from durable silicone, allowing it to be rolled up for easy transport and storage.
• Rechargeable Battery: Built-in lithium polymer battery offers over 4 hours of continuous play on a single charge.
• Diverse Tones & Rhythms: Includes 128 tones and 108 demonstration songs for varied musical exploration.
• MIDI Functionality: USB Type-C port supports MIDI output for connection to computers or other MIDI devices.
• Multiple Connectivity: Features headphone jack, Line Out, Line In, and Microphone input ports.
• Waterproof Silicone: The keyboard surface is waterproof and easy to clean.

Figure 3.2: Control panel with various input/output ports.

4. Setup

4.1 Unpacking and Initial Inspection

1. Carefully remove all components from the packaging.
2. Inspect the piano and accessories for any signs of damage. If any damage is found, contact customer support.

4.2 Powering On and Charging

1. Unroll the piano completely on a flat, stable surface.
2. Locate the ON/OFF switch on the control panel and slide it to the 'ON' position.
3. For initial use, it is recommended to fully charge the piano. Connect the USB Type-C charging cable to the 'TYPE-C DC 5V' port on the control panel and the other end to a 5V/1-2A USB power adapter (not included) or a power bank.
4. The charging indicator light will illuminate during charging and turn off when fully charged. A full charge typically takes approximately 2.5 hours.

Figure 4.1: Power supply options and charging indicator.

5. Operating Instructions

5.1 Basic Play

Once powered on, the piano is ready to play. Press the keys to produce sound. The silicone keys are designed to provide a responsive playing experience.

Figure 5.1: Playing the MARVTOWN Roll-Up Piano.

5.2 Adjusting Tones and Rhythms

• Tones: Use the 'TONE+' and 'TONE-' buttons on the control panel to cycle through the 128 available instrument tones.
• Rhythms: Use the 'RHY+' and 'RHY-' buttons to select from the 108 built-in rhythms. Press the 'PLAY' button to start the selected rhythm.
• Demonstration Songs: Press the 'DEMO' button to play one of the pre-recorded demonstration songs.

Figure 5.2: Control panel features for tones, rhythms, and demos.

5.3 Volume Control

Use the 'VOL+' and 'VOL-' buttons on the control panel to adjust the master volume of the piano.

5.4 Recording and Playback

• Record: Press the 'REC' button to start recording your performance. The indicator light will show recording is active.
• Playback: After recording, press the 'PLAY' button to listen to your recorded piece.

5.5 Sustain Function

The piano features a built-in sustain function. Press the 'SUSTAIN' button on the control panel to activate or deactivate sustain. An external sustain pedal (not included) can also be connected to the 'PEDAL' port for traditional sustain control.

5.6 Connectivity Options

• Headphones: Connect headphones to the 'HEADPHONES' jack for private practice.
• Line Out: Use the 'LINE OUT' port to connect the piano to external speakers or an amplifier.
• Line In: Connect an external audio source (e.g., phone, computer, iPad) to the 'LINE IN' port to play along with backing tracks.
• Microphone: Plug a microphone into the 'MIC' port to sing along while playing.
• MIDI Function: The 'TYPE-C DC 5V' port also functions as a MIDI OUT port, allowing you to connect the piano to a computer or other MIDI-compatible devices for music production or learning applications.

Figure 5.3: Connecting the piano to a smart device for interactive learning.

6. Maintenance

6.1 Cleaning

• To clean the silicone keyboard, gently wipe it with a damp cloth. Do not use harsh chemicals or abrasive cleaners.
• Ensure the control panel remains dry. If it gets wet, immediately power off the unit and allow it to dry completely before use.

Figure 6.1: Waterproof silicone keyboard for easy cleaning.

6.2 Storage

When not in use, roll up the piano and store it in a cool, dry place away from direct sunlight and extreme temperatures.

7. Troubleshooting

• No Sound:
  • Ensure the piano is powered on and fully charged.
  • Check the volume level and increase if necessary.
  • If headphones are connected, ensure they are working correctly. Disconnect them to check the built-in speakers.
• Keys Not Responding:
  • Ensure the piano is placed on a flat, even surface. Uneven surfaces can affect key sensitivity.
  • Restart the piano by turning it off and on again.
• Charging Issues:
  • Verify that the charging cable is securely connected to both the piano and the power source.
  • Ensure the power adapter is 5V/1-2A and functioning correctly.
• MIDI Connectivity Problems:
  • Ensure the correct drivers are installed on your computer (if required by your operating system or DAW).
  • Check the MIDI settings in your music software.

If you encounter issues not listed here or if troubleshooting steps do not resolve the problem, please contact MARVTOWN customer support.

8. Specifications

9. Warranty and Support

For warranty information and customer support, please refer to the product packaging or contact MARVTOWN directly through their official website or the retailer where the product was purchased. Please have your model number (US-88Key-euphony2) and proof of purchase ready when contacting support.