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AirTurn BT-200S-4 Wireless Foot Controller Review & MIDI Setup with REAPER

AirTurn contacted me in September for the possibility of reviewing one of their products. I wasn’t familiar with their brand but they had some interesting products, primarily designed for hands-free page turning of notation as you might have already guessed from their name. Browsing their website the BT-200S-4 caught my eye in particular. I immediately started dreaming of ways I could use it with REAPER, particularly for loop recording. I told them which one I wanted and I soon had it in my hands.

Disclaimer: AirTurn offered me the BT-200S-4 at no cost for review. I am not being paid to write the review but I did receive the product for free. At the request of AirTurn there are also affiliate links in this article. I hear you can get free shipping with that link as well.

Turn Pages Hands-Free with Our Bluetooth, 2 Pedal, Page Turners

The AirTurn BT-200S-4 is a rugged, compact, wireless, programmable 4-button foot controller that can be connected to Mac, pc, android or iOS device for sending keyboard commands or MIDI. I use it with REAPER on a Mac but you can also connect it to an iPad and a virtual amp/pedalboard software for fx pedal bypass.

In the box is the pedal and a fullsize USB-A to negative-center barrel connector cable for charging the battery, and yep, it can be powered by most pedal power supplies as well.

The pedal itself is not metal, but a good quality plastic. It’s small (but not too small) and lightweight enough that it’s going to be a noticeable burden to travel with. It weighs less than most stomp boxes.
The buttons feel good, a soft click similar to my TC pedals, not hard like the buttons on my Joyo or Electro-Harmonix pedals. One of the metal caps on a footswitch came loose. It just needs a drop of glue, I’m not bothered by this but I think it’s worth mentioning.

The first roadblock I hit was with bluetooth connection. My main DAW system was an 2011 iMac, which has an older bluetooth chip. Bluetooth adapters for Mac are annoyingly rare and expensive and I came close to ordering one. Good thing I didn’t because a month later, this iMac’s video card finally died. iMac sold for salvage, now I’m using my backup 2015 15” MacBook Pro for my studio, which luckily does have the correct version of Bluetooth.

So with the AirTurn, and compatible computer I just needed one more thing, the AirTurn Manager software, which can be found on the App Store (Mac), iOS App Store or Google Play Store (Android) for free. I couldn’t find the windows version of the software if there is one.

So I did have quite a bit of trouble with connecting the AirTurn BT-200S-4 to my Mac as a MIDI device, enough that I had to contact their tech support person Tyler to get me through it. Turns out he’s a REAPER user as well. Connecting it normally isn’t so hard, so if you use mode 2-6 you’ll have less trouble.

The AirTurn Manager software offers a lot of ways to configure the pedal. I focus on MIDI mode for the rest of the article but I’ll mention there are 6 user-layouts/modes with 2-5 available for various keyboard inputs (spacebar, arrow keys etc) and the last dedicated to MIDI messages.
Each button can be set to 4 modes, Momentary, Latch, Pulse, or Command. (Below copied from one of their FAQ pages)

Momentary: When the switch is pressed the On value is sent. When the switch is lifted the Off value is sent, or the output is reset.
Pulse: When the switch is pressed, the On value is sent followed immediately by the Off value.
Latch: When the switch is pressed, the value turns On/Off depending on what state it was in before. (Like the power button of a cell phone.)
Command: When the switch is pressed, the On value is sent. Note that the operating system key repeat will not apply.

To me ‘Command’ mode seems most appropriate.

As well you can set it to send commands in Sequence or Combination.

Sequence will send the Item 1 On message, then any following Item On messages. If there is an Off message associated with the On message of Item 1 it will not be sent until the switch is released and in the Off position, followed by any Item 2-4 Off messages accordingly.
Combination will send all Item On messages simultaneously. If there are any Off messages they won’t be sent until the switch is released and in the Off position. If there are multiple Off messages they will be sent simultaneously when the switch is released.

I haven’t found a use for that personally but seems like it could be handy.

Connecting the AirTurn BT-200S-4 to MacOS in MIDI mode.

  1. Press power button for 2 seconds to turn on (blue light will flash rapidly indicating bluetooth is disconnected)
  2. Press and hold the mode button until red light flashes 7 times, approximately 7 seconds to enter mode 7 (MIDI). (Red and blue lights will flash 7 times to confirm mode 7).
  3. On the Mac, enable bluetooth and open Audio MIDI Setup. Show the MIDI devices from the Window menu
  4. Double-click on Bluetooth, a window will pop up.
  5. When the BT200 is in the list, click connect
  6. A new MIDI device named BT200S-4 v2.1.1 1458 will be added.
  7. If you check in system preferences/bluetooth you’ll see the BT200 is connected, Airturn Manager will also see it, and if you go into your DAW you’ll be able to add it as a MIDI device (more on that later).

So these steps only take about a minute, but it took me a lot of trial and error to get that figured out. If you try to connect it anywhere other than Audio MIDI Setup first, like adding it in system preferences/bluetooth it will not work as a MIDI controller.
Holding the mode button is only necessary to do once, the mode will be remembered by the BT-200S.

My main goal with the AirTurn BT-200S-4 is to have it control many functions in REAPER depending on if transport is stopped, playing, or recording. I’m not at that point yet, I’m having trouble setting that up and I don’t think it’s anything to do with the AirTurn.

Let’s just get a few basic functions set up – Play/stop, Record, Metronome toggle, Tap Tempo.

MIDI Setup in AirTurn Manager

  1. Launch AirTurn Manager and connect to the BT-200S-4
  2. Mode 7 button 1: set mechanism to “Command”, type of output: “MIDI”, pick an MIDI channel, then Custom CC# and value.
    I used Channel 16 CC 22 = 127
  3. Repeat for buttons 2-4
    I used Channel 16 CC 23, 24, 25
  4. In the Key Repeat tab set to Off (optional)
  5. In Advanced set connection speed to Fast Response (optional, we need this for tap-tempo)
  6. Click “Save to AirTurn”

There are a ton of other options in there but I think most users will be happy with this and shouldn’t interfere with existing MIDI inputs.

Connection to REAPER

  1. Launch REAPER and open preferences/Audio/MIDI Devices
  2. Enable Input device “AirTurn – BT200S-4 – Bluetooth” for control only. (We don’t need it as an input for tracks)
  3. Apply and close preferences

Simple as that, we can now open REAPER’s action list (actions menu, show action list) and assign any of the BT200S buttons to anything.
Pick an action such as “Transport: play/stop”, click add in the bottom left, then press the footswitch. You should see “MIDI Channel 16 CC 22” appear. I also make sure this is on Absolute mode.
Do the same for button 2, assign it to “Transport: Record”.
Assign button 3 to “Options: Toggle metronome”
Assign button 4 to “Transport: Tap tempo”

This is the most generic example of what you can do with the pedal, but it’s not bad. It’s stuff you often need when your hands are busy with a guitar or keyboard.

Here are some other ideas for action assignments

  • Selecting tracks (with auto track arm enabled)
  • Toggle record normal or time selection
  • Go to next project marker
  • Go to/select next region (for loop recording)
  • Toggle mute for master track
  • Articulation switches for virtual instruments
  • Cycling automation modes

The AirTurn BT200S-4 works well, after the initial troubleshooting, and I’m sure I’ll get a lot of use out of it. Long battery life, no wires to trip over, what’s not to like?

The $99 cost is fair, considering there is nothing else available that offers battery power, wireless, and software to configure. There’s a lot out there that is more expensive, more bulky and too generic or designed for connecting to certain software/hardware. AirTurn has a few other models in a similar style, a 2-button version of the BT200, and the Stomp6, a more rugged 6-button version for guitar players.


  1. Gord Elias
    Gord Elias September 21, 2019

    can you help with this product setup One through four switches

  2. Chuck
    Chuck February 20, 2020

    I can not connect it to my MacBookAir. This sucks bigtime. I will send it back to my dealer..

    • Admin
      Admin February 20, 2020

      most likely it is the bluetooth version. same issue I had with my iMac. Anything from 2015 to now should work though

  3. Larry R.
    Larry R. March 5, 2020

    I am using midi mode 7 to control hardware keyboard Korg PA1000. Keeps loosing the Bluetooth connection and then turns off within 15 minutes. Purchased 2nd unit, will send it back. Will keep 1st unit (same application/problem). Sent out a ticket to manufacture, hoping for a solution. No problem with Irig BlueBoard, same application.

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