Brain activation Complete set of English words (condition : microphone is missing)

Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.

* The condition of this item is as follows.
The microphone is out of stock.
This item is sold based on the condition described above.
Please note that we do not accept any questions, returns, or claims.
In the case of used items, the sponge of the microphone ear pad of the headset may deteriorate due to aging. Therefore, the condition and existence are not covered by the warranty.
Please note in advance.
Windows Soft Media : CDs