No Its just a color
You can not use the normal PSP headphones on a PSP 2000 series, however you can buy a pair of PSP 2000 series headphones which you can most likely get anywhere you can get the original PSP headphones the original PSP has a 3 pronged connecter cord while the PSP 2000 has a 5 which comes on the PSP 2000 series headphones.
3000 slim
The 'PSP Street', PSP-E1000 (not 'slim', that's the PSP-2000 series) does not have any wireless hardware. So you can't connect it to wi-fi.
The PSP models that have Wi-Fi are; PSP-1000, PSP-2000, PSP-3000, PSP Go (N-1000). The PSP E-1000 (PSP Street) does not have WiFi
Skype works on PSP series 2000 and 3000. I understand that is comes with the upgrade of the firmware.
all psp's do.all but the new psp go, you can only download games to itThere is no such thing as a PSP 4000. Just 1000, 2000 and 3000 for the original PSP series, and N1000, which is the GO.
2000
On the PSP-1000 and PSP-2000 series it is the button marked 'Home' on the left of the buttons below the screen. On the PSP-3000 and E1000, it is the same place, but is marked with a PlayStation logo instead.
If you look on its bottom edge, it will have the PSP's serial code. This will include 'PSP-X00Z', where 'X' is 1, 2 or 3 to designate the 1000 (phat), 2000 (slim) and 3000 (brite) series, and the 'Z' is the region code. If this is a '1', then your PSP is a US PSP.
They are virtually identical. The 3000's lower buttons are rounder, rather than semi-circular on the 2000. The 3000 has an 'advanced' screen, and a built-in microphone.
A PSP (PlayStation Portable) is a handheld game device created by Sony.There are three types. First is PSP 1000 series also called a normal PSP or phat. Second is the PSP 2000 series or called a PSP slim and lite. It is 33 percent lighter and 13 percent slimmer. Third is PSP 3000 series. It is the same weight and thickness as the PSP 2000. The only difference between 3000 and 2000 is that 3000 has a built in microphone and a improved screen(it also has the scan line effect Sony supposedly added on purpose. I doubt it because this makes it look bad). The good side about the screen is that has 4 times the colors and has a special coating to reduce glare.
PSP 2000 is the second PSP Version also known as the PSP slim. There is a newer version called PSP 3000 which more things were added to.