Question about Philips Beardtrimmer Series 5000

Unfortunately, the shaving head is already blunt.

Unfortunately, I can't find one at the moment, but it may come, but don't worry, you can use such a shaving head for years, they are self-sharpening, so to speak (whatever that means, I wonder if the little heaters come and scrape it in the night? ) I had my old one for 16 years, always cleaned it well, and it still cuts almost like new. So don't worry.

unfortunately they don't have the razor head.
but thanks anyway!