Simple Photoshop Edit 32 Images of Headphones

We have 32 images of our new headphones which have already been heavily edited and cleaned up.

However, the colour and finish are *slightly* off, and unfortunately we can't make contact with our usual image editor.

See example of how the images currently look and roughly how we need them to look attached.

You can also see a video of the shade of black and the matte finish of the headphones in the video here:
https://pump-audio.com/zeus-v4-colour-like/

This should be a pretty simple job for someone with good Photoshop skills as all of the messy work has already been done - we just need to perfect the shade and finish of the headphones like in image attached.

Images to be edited (PSD and JPG) here:
https://www.dropbox.com/sh/dtxan3l6orx86pb/AADmj1LeT4tCaScwpQr6X0spa?dl=0

All the best,

Adam