Australia to Oman: You'll need an adapter
You'll need a plug adapter: Australia uses Type I, Oman uses Type G, and they don't fit. Voltage is compatible (230V vs 230V), so any dual-voltage or matching device is fine either way.
You'll need a plug adapter: Australia uses Type I, Oman uses Type G, and they don't fit. Voltage is compatible (230V vs 230V), so any dual-voltage or matching device is fine either way.