Don’t require power plug adapter while traveling from Guam to Montserrat.

Here's why you do not need an adapter

The outlet and plug type used in Montserrat are A and B and in Guam are A and B and they are compatible with each other.

Guam

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

Type A

Type B

Montserrat

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

Type A

Type B