Sony PlayStation Portable PSP-1007 Instruction Manual page 17

Removing the 3-pin converting adaptor (PSP-1006 only)
Electrical outlet configuration may vary depending on the region of use. If the
plug on the supplied AC power cord does not match the electrical outlet, loosen
the screw and remove the converting adaptor.
Mains power plug
GB
3-pin converting adaptor
17
Checking the package contents