Artiphon Orba

Artiphon Orba is handheld synthesizer, looper, and MIDI controller.
The Orba features a built-in synth engine and speaker, so it can be played anywhere. Artiphon describes the built-in syunth engine it as a hybrid synth, featuring morphing oscillators, physical modeling and MPE MIDI support.
Orba pairs with a companion app, which lets you switch quickly between Drum, Bass, Chord, and Lead parts, or layer them to create a song with the built-in looper.
Orba is also a class-compliant Bluetooth MIDI controller, so you can connect wirelessly and use it with your MIDI software.