It doesn't do anything and they won't take it back either.
They will tell you smth along the lines of
"Sorry, it just didn't work on you"
Save your money and do it professionally.
I have spoken with Remington too, and they asked me to go through the store you bought it from.
The store said "Tough luck; keep your lemon"

I've had this product since 2017, from Shavershop. I did a little research before buying and purchased it because of the infinity use bulb, and reading good reviews. I am in my late 20s, Indonesian, with tanned skin and black hair and only use it on level 1, once a week. I noticed results after my first and second uses, which really pleased me! I have used on under arms, upper lip, chin, arms, legs, even fingers. I stopped using it as I fell pregnant but my chin hairs have never grown back, finger hairs and arm hairs werent growing back with re...

The worst product I have ever purchased! It worked four times max, I tried to contact Remington and the Shaver Shop to find out how/where I get it fixed and neither got back to me despite repeated calls and emails (it is now out of warranty). I even tried to replace the cartridge but the fault is definitely with the machine. Dont waste your money - there are much better quality products/brands out there.

Have been using it since my Philips Lumea died about 3 years ago. Was a bit expensive though. It works well. No complaints so far. Have to keep using it. Have to be careful with brown skin like mine. I put the settings on 2 lights. Be very careful in sunlight. My hands got very tanned & hot once using 3 lights. I am still thankful