United Kingdom to Serbia: You'll need an adapter
You'll need a plug adapter: United Kingdom uses Type D/G/M, Serbia uses Type C/F, 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: United Kingdom uses Type D/G/M, Serbia uses Type C/F, and they don't fit. Voltage is compatible (230V vs 230V), so any dual-voltage or matching device is fine either way.