---
title: "Send audio"
description: "Send audio and voice messages on WhatsApp."
---

> Documentation Index
> Fetch the complete documentation index at: https://docs.wazapin.id/llms.txt
> Use this file to discover all available pages before exploring further.

# Send audio

Deliver voice notes or audio files — spoken updates, pronunciation guides, or support messages customers can listen to on the go.

## At a glance

| Item | Detail |
| --- | --- |
| `type` | `audio` |
| Supported formats | AAC, AMR, MP3, M4A (`audio/mp4`), OGG |
| Maximum file size | 16 MB |
| Media field | `content.media_url` (aliases: `media`, `url`) |
| `content.media_type` | Optional; inferred from `type: audio` when omitted |
| Channel support | Official and unofficial |

## Request body

| Field | Required | Description |
| --- | --- | --- |
| `channel_id` | Yes | Sender channel ID |
| `to` | Yes | Recipient phone number |
| `type` | Yes | `audio` |
| `content.media_url` | Yes | HTTPS URL to the audio file |

## Example

### cURL

```bash
curl -X POST "https://api.wazapin.com/v1/messages" \
  -H "X-Api-Key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
"channel_id": "wzp_abc123",
"to": "6281234567890",
"type": "audio",
"content": {
  "media_url": "https://cdn.example.com/audio/voice-note.ogg"
}
  }'
```
### TypeScript

```typescript
import { WazapinClient, audioMessage } from "@wazapin/sdk";

const wazapin = new WazapinClient({ apiKey: process.env.WAZAPIN_API_KEY! });

await wazapin.messages.send(
  audioMessage({
channel_id: "wzp_abc123",
to: "6281234567890",
media_url: "https://cdn.example.com/audio/voice-note.ogg",
  }),
);
```
### Python

```python
import requests

requests.post(
"https://api.wazapin.com/v1/messages",
headers={"X-Api-Key": "YOUR_API_KEY", "Content-Type": "application/json"},
json={
    "channel_id": "wzp_abc123",
    "to": "6281234567890",
    "type": "audio",
    "content": {"media_url": "https://cdn.example.com/audio/voice-note.ogg"},
},
timeout=30,
).raise_for_status()
```

Source: https://docs.wazapin.id/getting-started/send-audio/index.mdx