The Roland WM-1 is an adapter that lets you send MIDI information wirelessly at a range of up to 30'. It uses Bluetooth to work with macOS and iOS devices, or can be used with another WM-1 unit for MIDI instruments or the WM-1D adapter for Windows and Mac computers. In addition to MIDI note data, you can send MIDI sync for tempo, effects, LFOs, loops, and more—all without connecting a single cable.

The WM-1 plugs into the standard 5-pin DIN in and out ports on your device and is ready right out of the box to send MIDI to Mac computers and iOS devices via Bluetooth. Used this way, the adapter operates in Standard mode. You can connect up to 4 devices in this mode, but the latency will range from 7.5ms up to 15ms, which may create timing issues.

For a more responsive playing feel, the Fast mode lowers the latency to 3 ms, but this limits you to connecting only two devices, and you will need to use either another WM-1 or a WM-1D (available separately) for Windows and Mac computers. The WM-1 is powered for up to 60 hours by a single AAA battery.