From Gearnews:
Expanded ELZ_1 Features
The ELZ-1 PLAY takes the concept of the original and expands on it. Clearly stealing from the SmplTrek, the ELZ_1 PLAY now features a 4-track looper that can not only loop internal sounds but also external audio via the Line In or USB Audio. Rhythms can be created using the STK Drummer, a sample-based drum engine with 5 kits and 100 patterns. This engine is compatible with SmplTrek kits!
The keyboard has also been improved to support velocity on all keys. Speakers are built into the side panels and there are connections for 5-pin DIN MIDI, USB-C and an SD card slot for storage. Another addition is MIDI CC support. Other connections include Sync In/Out as well as Line out for audio and a headphone socket.
From dr.yuendo’s page:
Next ELZ_1, that is ELZ_1 play!
ELZ_1 play has expanded features and interface to take advantage of its unique sound without modifying the original ELZ_1’s core sound engines & effects.
- 14 synth engines + 26 effects that fans of the ELZ_1 know and love.
- New 4-track looper for easy one-touch record/playback/overdub.
- Velocity-enabled keyboard, stereo speakers built into the side panel, USB audio & MIDI.