A:AnswerThese are usually a Christmas season item that Best Buy has in stock and then discounts after the holidays. Once they are gone you don’t generally see them until the holiday season the following year. I buy a set each season, mainly for the new headset and then I sell the old set for about half of what the new set cost me. It is the best deal I’ve found on peripherals or input devices until this last Christmas season 12/2019. This year another company put out a box set too. Best Buy discounted that set also but it was $10 less than the discounted Corsair box set. If memory serves me the manufacturer on that set was Razer. That set doesn’t include a headset. Here is the link to that set which is currently $5 less than the Corsair box set with a headset. Happy Gaming!
https://www.bestbuy.com/site/razer-essential-wired-gaming-bundle-black/6384929.p?skuId=6384929&ref=212&loc=1&extStoreId=566&ref=212&loc=1&gclid=Cj0KCQiAkKnyBRDwARIsALtxe7hPHg-G-HUFmQHficJAdfXg6K4T40fK8JZZX30RQuIiPgt9saEXwBYaAmR6EALw_wcB&gclsrc=aw.ds
A:AnswerIt's fairly large. Larger than normal anyway, but smaller then an official "gaming" mouse pad. It won't be completely under your keyboard with any left sticking out to use for the mouse.
A:AnswerYes and I don't know. The keyboard worked like any other keyboard that I plugged into my PS4. Simply plug and play with RGB! The mouse however, I've never tried, but I've never used any mouse on my PS4.
A:AnswerI’m sure any keyboard and mouse will work on PS4. I use this on my Xbox one and it works great. Just a heads up once you use keyboard and mouse your server will switch to a pc server.