You Do Need power plug adapter while traveling from Slovakia to Myanmar (Burma).

Here is Why You Need An Adapter

The outlet and plug type used in Myanmar (Burma) are A, C, D, G and I and in Slovakia are C and E. This is how they look like.

Slovakia

In Slovakia, outlets of type C and E are in use.

Type C

Type E

Myanmar (Burma)

In Myanmar (Burma), outlets of type A, C, D, G and I are in use.

Type A

Type C

Type D

Type G

Type I