Bontempi E1 is a small polyphonic keyboard produced by Bontempi in the 80s/90s, very simple, with different sounds: brass, flute, fantasy. It is quite rare, during these years I have only seen mine online. It has an automatic shutdown system.
It has a strange wheel on the left that manages sounds. It can be powered by batteries or with an adapter.
The keyboard has 25 small keys that are not sensitive to touch. and a system for transporting notes up and down with respect to the fundamental note C3
Keyboard dimensions: 39.3cm x 18.8cm 1.08Kg