The Numa Compact 2 88-Note Semi-Weighted Keyboard with Built-In Speakers from Studiologic is a compact and lightweight keyboard that features 88 sounds, digital post-processing effects, and full MIDI controller characteristics. With the built-in speakers and the internal digital amplifier, it can be used in training sessions, at home with headphones, or on a live stage, and more. Expressive performance is performed with two ergonomic metal stick-controllers and aftertouch. The keyboard's velocity sensitivity, or "touch", is also programmable to soft, medium, hard, or fixed responses, allowing for various levels of control. It can support polyphony up to a maximum of 128 voices.