■Pioneer DJ / DDJ-400-HA D4DJ “Happy Around!” headphone set

A new headphone set based on the unit color of the popular PCDJ controller DDJ-400-HA "D4DJ First Mix" collaboration model has been released since the beginning of February.
The set includes DJ headphones based on white, and an attachment for headphones that matches the orange color of the popular DJ unit "Happy Around!" That appears in the anime.
In addition, Sound House is giving away a free laptop stand and audio cables in the set.

Pioneer DJ DDJ-400 Official Introduction
D4DJ Official website