A small device lets a traveler plug an electrical appliance into a foreign wall socket that has a different shape. That device is a travel adapter. It addresses the physical incompatibility of plug types across countries.

Adapters do not convert voltage; a separate transformer or a dual-voltage appliance is required when voltages differ. Multi-region adapters cover several plug standards in one unit and reduce packing bulk. Quality matters because poor contacts can overheat.

Researching the destination's plug type before departure prevents the common problem of unchargeable devices. Many modern chargers accept wide voltage ranges, making the adapter the only missing piece. Forgetting one is a frequent and avoidable annoyance.

A pocket-sized adapter keeps phones, laptops, and cameras alive far from home.