A prototype of a Bluetooth keyboard

Seen on eBay, a prototype of an Apple keyboard. It’s an aluminum wireless model (v1) in DVT. The asking price is (very) exaggerated: €950.

Visually, the keyboard doesn’t have anything special, but a sticker and an inscription indicate that it’s a prototype. The seller adds that the keyboard calls itself Clares Keyboard. It’s the original version, which requires three AA batteries to function.