RockJam 88-Key Digital Piano with Semi-Weighted Keys

Brand: RockJam

Model: RJ88DP

Number of Keys: 88 Standard Size Keys

Key Action: Semi-Weighted

Condition: Good (Used)

Functional Status: 100% Fully Functional and Tested

Up for sale is a used RockJam 88-Key Digital Piano. This is a highly popular, full-sized electronic keyboard designed for beginners, students, and mobile players alike. Featuring 88 semi-weighted keys, it gives a great balance between a traditional piano-style dynamic response and a lightweight, highly portable design. Packed with modern digital features like built-in stereo speakers, multiple instrument voices, and flexible connectivity, it serves as an excellent tool for practicing at home or recording into a computer setup.

Testing, Power & Functional Status

• Fully Bench-Tested: This digital piano has been comprehensively tested and passes with flying colors. Every single one of the 88 keys triggers accurately across all velocity levels. The top panel function buttons, volume slider, and internal stereo speakers operate flawlessly without any static or signal dropouts.
• Power Specifications: The main board accepts standard DC 9V to 12V input. We have thoroughly tested this unit using a 12V DC power supply, ensuring optimal voltage stability, strong amplifier output to the speakers, and clean digital processing performance.

Cosmetic Condition Notes

• Good Used Shape: This keyboard is in nice, clean cosmetic condition.
• Minor Wear: As a pre-owned instrument, it exhibits typical light cosmetic scuffs or minor superficial scratches on the outer plastic housing from normal handling and storage, but remains completely free of any structural cracks, deep gouges, or broken components. The keybed itself is clean and level.
• Please review all high-resolution photos carefully to view the exact physical condition.

Key Features

• Full-Size 88 Keybed: Semi-weighted keys provide physical resistance to help build proper finger strength and expressive touch control.
• Onboard Sounds & Effects: Loaded with multiple highly realistic instrument voices (including Acoustic Piano, Electric Piano, Organ, and Strings) along with built-in chorus and reverb effects to add atmospheric depth.
• Flexible Rear Connectivity: Features a 1/4" sustain pedal input, a dedicated headphone jack for silent nighttime practice, auxiliary outputs to connect to an external amplifier/PA system, and a USB-to-Host MIDI port to instantly use the keyboard as a MIDI controller with your DAW or learning apps.

What’s Included

• RockJam 88-Key Digital Piano
• Compatible 12V DC Power Supply Adapter
• Note: Accessories such as a sustain pedal, music rest, or keyboard stand are not included with this listing unless explicitly pictured.

Standard Shipping & Instrument Guidelines

• Packaging: Shipping long, full-sized keyboards requires maximum protection. This instrument will be wrapped in multiple thick layers of heavy-duty bubble wrap, and its corners/ends shielded. The entire chassis will be safely isolated inside a rugged, elongated shipping box with form-fitting shock isolation to guarantee it arrives safely at your doorstep.
• Shipping: Ships promptly with tracking. Please check our feedback and buy with confidence!

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