> For the complete documentation index, see [llms.txt](https://sryvkver.gitbook.io/cobi.bike/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://sryvkver.gitbook.io/cobi.bike/namespaces/tour-service/average-speed.md).

# Average Speed

The average speed — in meters / second.

{% tabs %}
{% tab title="Typescript" %}

```typescript
const onAverageSpeedChange = (value: number, timestamp?: Date) => {
    console.log(value, timestamp);
};

COBI.tourService.averageSpeed.subscribe(onAverageSpeedChange);
COBI.tourService.averageSpeed.unsubscribe(onAverageSpeedChange);
```

{% endtab %}

{% tab title="Javascript" %}

```javascript
const onAverageSpeedChange = (value, timestamp) => {
    console.log(value, timestamp);
};

COBI.tourService.averageSpeed.subscribe(onAverageSpeedChange);
COBI.tourService.averageSpeed.unsubscribe(onAverageSpeedChange);
```

{% endtab %}
{% endtabs %}