You Do Need power plug adapter while traveling from Mozambique to Belize.

Here is Why You Need An Adapter

The outlet and plug type used in Belize are A, B and G and in Mozambique are C, F and M. This is how they look like.

Mozambique

In Mozambique, outlets of type C, F and M are in use.

Type C

Type F

Type M

Belize

In Belize, outlets of type A, B and G are in use.

Type A

Type B

Type G