# Speaker

中文 | [English](/en/api_reference/micropython/api_speaker) | [日本語](/ja/api_reference/micropython/api_speaker)

### <mark>tone</mark>
> M5.Speaker.tone(uint32_t freq);

设置声音音高

| Param | Type | Description |
| --- | --- | --- |
| freq | <code>uint32_t</code> | 频率 |

**例程**
```c++
M5.Speaker.tone(100);
```