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# Sound & Vibration

### Sending a Push Notification with Vibration for Android <a href="#sending-a-push-notification-with-vibration" id="sending-a-push-notification-with-vibration"></a>

To enable vibration in your Android application, add the following permission to your `AndroidManifest.xml` file as a direct child of the `<manifest>` element:

```java
<uses-permission android:name="android.permission.VIBRATE" />
```

Afterward, ensure that vibration is enabled in the "What" tab while creating a campaign.

### Adding Custom Sound to Your Project

You have the option to customize push notification sounds for different messages. Here's how to do it:

1. Include your sound files in the **"res/raw"** directory within your Android project.

{% hint style="danger" %}
**Sound File Formats:**

* Sound files must use the `.wav` extension.
* Custom sounds should not exceed a maximum length of 30 seconds.
  {% endhint %}

2. Navigate to **Developers > Messaging Assets > Sounds > Create New Sound**.
3. Enter the filename in the **Sound FileName** field. Use the filename without its extension when referencing the sound on Android.
4. Use lowercase letters, numbers, and underscores in sound filenames. For example, reference `notification_sound.wav` as `notification_sound`.
5. Select the desired sound name from the drop-down menu.

{% hint style="warning" %}
**Why Does My Notification Play Default Sound?**

**Exceeding the Limit:** If any sound file exceeds the 30-second limit, the default sound of your phone will play instead of your custom sound.

**Sound File Location:** Ensure that the sound file is in your Android project's `res/raw` directory. Otherwise, the device plays its default sound.
{% endhint %}

### Sending Push Notifications with Sound

To send push notifications with sound, enable the "Play Sound" option on the "What" tab when creating a new push. If you choose "Default," the device's default sound will play, provided that sound is enabled in the device settings.


---

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