PS4- the ps4 by its self has been good and working as for the yellow stains in the ps4 its due to loud fan and because of the heat but the console works fine. So whenever you play the games on it try not to leave it in a inclosed space. It will still work normally

PS4 controller- the controller is good and perfectly working and has no problem at all

Chargers - the chargers that we have included are all working the small one is for the ps4 controller . The largest one is a HDMI cable . And lastly the one that’s a bit smaller than the HDMI cable is a power cable for the ps4. And all of these cables work very well