Game chair power supply holder for wireless use

The problem with game chair is that even a wireless sound system needs a power cord. I solved that by putting a rechargeable battery pack to make the chair completely wireless to avoid getting tangled.

This holder mounts underneath the gaming chair and is out of the way.

The PSU I used is
https://www.amazon.com/gp/product/B01337QXMA/ref=ppx_yo_dt_b_search_asin_title