Korg 37-Key Midi Controller MKEYAIR37 - Compact Bus-Powered Keyboard

Our review of the Korg 37-Key Midi Controller (MKEYAIR37) finds it best suited for mobile musicians and bedroom producers who need a lightweight, well-playing keyboard that travels. The bottom line: its keyboard quality and compact form factor are the clearest reasons to buy, delivering satisfying key action and a portable package that fits into a backpack while still offering useful performance controls like a pitch wheel and mod wheel. Bluetooth adds convenience for iPhone and iPad users when it works, but expect mixed results with wireless pairing.

Key Features

• 37 semi-weighted keys: The 37-key layout gives enough range for melodies and basslines while keeping the controller highly portable for gigs or travel.
• USB and Bluetooth connectivity: Use a wired USB connection for reliable class-compliant setup or Bluetooth for cable-free practice and simple mobile setups.
• Bus-powered operation: The keyboard runs from USB power, removing the need for an external power supply in most setups.
• Mod and pitch wheels: Real-time expression controls let performers add vibrato, pitch bends and modulation without reaching for software knobs.
• Damper pedal input: Adds expressive sustain control for piano-style playing when a pedal is connected.

Who It's For

The MKEYAIR37 is ideal for students, mobile producers, and live performers who prioritize portability and a quality playing feel in a compact MIDI controller. Its form factor and weight make it easy to carry between practice spaces and fits well into modest studio setups.

It is less suitable for those who demand rock-solid Bluetooth performance across all devices or players who need a large keybed with full-size 49 or 61 keys; users who require a constant wireless connection on a variety of phones or computers should verify compatibility or rely on USB for stable operation.

Pros & Cons

Pros

• Excellent keyboard feel and key action for its size, praised by many users.
• Very portable and lightweight, making it an easy choice for travel and student use.
• Useful performance controls including mod wheel, pitch wheel, and damper pedal input.
• Class-compliant USB makes setup straightforward with most computers and tablets.

Cons

• Bluetooth connectivity receives mixed reports; some users experience pairing problems or intermittent operation.
• The 37-key size limits range for players who need extended keyboards for certain arrangements.

Specifications

Brand	KORG
Model	MKEYAIR37
Keys	37-key USB/Bluetooth keyboard
Power	Bus-powered via USB
Controls	Pitch wheel, Mod wheel, Damper pedal input
Compatibility	Class-compliant (USB), Bluetooth for mobile devices

Our Verdict

The Korg MKEYAIR37 is a smart pick for on-the-go creators who want a compact controller with a pleasant playing feel and essential performance controls. It offers strong value when used with a wired USB connection and is a particularly good match for laptop and tablet-based setups, though buyers who depend on flawless Bluetooth across many devices should test pairing first.

Frequently Asked Questions

Does it work without an external power supply?
The controller is bus-powered over USB, so an external power supply is not required in most desktop or laptop setups.

Can I use it with an iPad over Bluetooth?
Yes, it supports Bluetooth pairing with mobile devices, and many users report success with iPhones and iPads, though Bluetooth performance can vary by device.

Is the key action good for performance?
Users consistently note the keyboard quality as excellent for its class, with responsive key action suitable for practice, composition, and light performance.