Has one button. Hold it down to play an MLG Air Horn. Use the sliders to customize your horn's pitch and duration, even while it's playing.

Tap it a couple times then hold it down for a "Byer-byer-byer-byerrm" effect!

Not ad supported. Not collecting any data, outside of local statistics for your enjoyment. The new "AR Horn" mode places a 3D airhorn into your environment!

Apple Watch support adds a button for Byerrm right on your wrist, with a simple complication for ease of access.