This is a very useful device for controlling a computer or tablet, turning pages in digital books, controlling a Digital Audio Workspace like Pro Tools, etc. Advertised as an assistive device, I used it with my iPad to control various music apps. For me, the device is a game-changer in how I use my electronics.
The reason for selling: Apple changed their Bluetooth programming interface so that it no longer interfaces properly with my iPad, otherwise I would keep it. If you have a use for it that doesn’t involve the current iOS, it should work fine.