# Technology

Learn how to define an audience based on technographics.

The [`device`](/reference/cql/context#technology) and [`browser`](/reference/cql/context#technology) variables let you target segments based on the device type, category, brand, and more.

For example, if you want to target users who are using a mobile device, you can use:

```cql
device's category is "mobile"
```

You can also target users using a specific browser, such as Chrome or Firefox:

```cql
browser's name is "Chrome"
```

Or even a specific device vendor:

```cql
device's vendor is "Apple"
```

For more information on technology variables, see the [Technology](/reference/cql/context#technology) section.