Korg, 25-Key Midi Controller (MKEYAIR25)

It’s perfect for travel, it’s very lightweight and fits perfectly in my backpack.I use it mostly to write scores on my iPad using Dórico. For that type of use, the two octave size is enough.If you want to use for recordings and want to play with both hands I suggest a larger version with 3 or 4 octaves. But if you are recording a single line with one hand and want something more portable it works great.The key size is small and narrow but it’s just wide enough to fit my big hands without pressing two notes at the same time. The weight of the keys is good. They don’t feel flimsy like other portable keyboards and are silent when pressed and released (unless of course you slam your fingers on them) but under normal circumstances they are silent.With the Bluetooth MIDI Connect app by Korg connecting the keyboard to my iPad and MacBook Pro is a breeze, just open the app turn on the micro key air and select it on the app. After you’ve done that the first time you don’t even have to open the app you just turn on the keyboard and automatically connects. You do have to download the app to connect it, because the midi keyboard won’t appear under the normal Bluetooth settings.In terms of latency, I haven’t noticed any.Considering the good build quality and portability, I find it to be a good value for the money and I highly recommend it.

This micro key air is the best-built, feature-filled portable controller I've ever used!It's a little bigger than I was expecting, but the keys have good action, it's built solid, and the joystick is nicer than the one on my workstation!The main selling point for me was the Bluetooth capability. I needed a portable keyboard to use with my Korg Gadget software (running on my iPhone) and this pairs instantly and there's almost zero latency.Unexpectedly, the micro key air also comes with a usb cord and can be used as a portable keyboard for my laptop DAW.I'd definitely recommend this, and am considering buying a few more for Christmas gifts.Pros:Great responsive keysWell-built joystickMore sturdy build than many other optionsConnects to Bluetooth quicklyCan be used as a tethered usb controllerCons:Slightly bigger than expected; is an inch too wide for my laptop bag (when also carrying my laptop and charger).

The keyboard itself is great. The keys are smartly compressed to fit 3 octaves (37), and the touch is smooth and precise in registering velocity values. They are not weighted, which is preferable when programming midi (unlike when playing classical piano) - some confuse this for being cheap feeling, but its actually pretty good for non-weighted keys.The Big Problem is that the bluetooth driver is not compatible with current Windows 10/11 updates (instant disconnect, and a range of only a few inches on my two Windows PCs, while other bluetooth devices work fine). I tested on two different MicroKey Air 37s to confirm this. Windows does not include native midi-over-bluetooth support, and it is up to manufacturers to support it via custom drivers. Korg has not bothered to fix drivers when OS updates break them. On the MicroKey Air page, Korg states that the bluetooth driver is compatible with Windows 8.1 and above, but this is simply not the case (and is also problematic with Apple updates, as I have read).I would suggest getting the MicroKey2 instead of the Air - it's the exact same keyboard, but without bluetooth, and a lot cheaper. The reality is that midi bluetooth simply does not work reliably on any OS (for very long), and Korg does not seem to show the dedication required to maintain bluetooth driver compatibility in a timely fashion.

I got the 3 octave Korg micoKey Air keyboard today. The keyboard + iPhone + GarageBand work great. It's an extremely portable / wireless setup.The pro's so far (e.g., things I worried about):- it easily connected via bluetooth to my iPhone 13, via the Korg midi app- there is zero delay between key press and sound from the iPhone when using bluetooth- the bluetooth connection stayed active for over 1 hour w/out fail (phone prevented from screen lock)- the bluetooth connection stayed active thru both screen lock and phone sleep (when that happens, Garage Band needs to be brought into foreground tho)- the keys have a decent feel, and not prohibitively small- 2 rechargeable AA batteries kept the keyboard alive for about 2 hours (not sure how charged these batteries were when I started)The cons:- to play sounds, Garage Band has to be the foreground app -- not really the keyboard's fault (more a con w/iPhone)j - so screen locks, you lose audio ... on unlock, Garage Band need to be manually put into the foreground (again, a setup issue ... not keyboard issue -- good news is bluetooth connection stayed thru lock screen).I'm mostly a piano player that prefers full-size weighted keys. I bought this keyboard to do left-hand exercises during down-time (e.g., watching TV). Despite the key size and weight, this thing will work pretty well for that purpose. But what has me really excited is the portability of this setup -- can see it will be cool to this minimal setup around a campfire, drum circle, etc... (something I have never done in the 30+ years of owning 61-key synths).