tablet pen; stylus
A pen-shaped input device for tablets and touchscreens; common in digital art and note-taking.
The new tablet pen is rechargeable and feels very good to draw with.
タブレットペンをなくしたので、指で操作している。
I lost my tablet pen, so I'm using my finger to operate it.
Variant with interpunct; less common in running text.
Wasei-eigo (Japanese-made English) from 'tablet' + 'pen'.