Theremon+ is a self-contained electronic instrument played without physical contact—your hand movements in the air control pitch and volume. It’s based on the classic theremin, but reimagined for modern music-making with a focus on playability, portability, and creative features.

Theremon+ marks the next step in the evolution of our original Theremon DIY kit—and a major milestone as our first fully assembled, non-DIY instrument.

Like its predecessor, Theremon+ uses two sensor fields: one hand controls pitch, the other volume. The original Theremon earned its place in musical setups worldwide as a compact, dependable workhorse. With Theremon+, we’ve expanded on that legacy with enhanced processing power and a suite of new features that unlock exciting creative possibilities.

New additions include:

• Two wavetable voices for an accompaniment section with built-in arpeggiator and drum patterns
• Song Play mode, allowing players to chain parts for automatic key changes
• Song Trigger mode, where players can trigger key changes on the fly
• A new effects section with delay, high-pass filter, and improved stereo reverb
• Hardware MIDI input and output on 3.5mm TRS jacks
• Class-compliant audio and MIDI over USB

All this comes in addition to the original Theremon’s feature set.