Canon USB   Resetter.

1. Use with USB power,no need battery.
2.different area with different resetter:
A. For America: PGI-220BK/ CLI-221BK/C/M/Y.
B. For Japan: BCI-320BK/ BCI-321BK/C/M/Y.
C. For Europe: PGI-520BK/ CLI-521BK/C/M/Y.
D. For Asia: PGI-820BK/ CLI-821BK/C/M/Y.