Dictaphone.
A tape recorder that records and reproduces dictation.
in the modern day office, a pre-requisite for an efficient administration is the dictaphone. Dictating reams of pages to a secretary is a time-consuming and tedious process.
the dictation is also prone to typographical and other unwarranted errors which are human enough not to lose sleep over.

On the other hand, dictating your notes into a dictaphone will be a more effective dictation. It will ensure more efficient dictation records with a retrieval of date and more error-free work.

For the modern office, a dictaphone is highly recommended.