Can I buy Wahl clippers/trimmers/hairdryers from overseas to use in my country?

To put this in the nicest way possible… you should not!! And we will explain why… All Wahl Appliances are made to run on the specific power supply and meet the safety standards for their designated areas. Using a high voltage appliance on a power supply it is not designed for will cause damage to the appliance and may cause personal harm. Any item purchased from an international supplier will not have the individual countries Safety approval, hence it will not be covered by any warranty or insurance should a major fault occur.