# How does the client test the device?

<div data-elink-language-switch="1" id="bkmrk-%E4%B8%AD%E6%96%87" style="border:1px solid #d6d9de;border-radius:6px;padding:10px 12px;margin:0 0 18px 0;background:#f8fafc;font-size:14px;">[中文](/books/68d30/page/e1654)</div><span style="font-size:14px;">Click on the device detection in the settings in the upper right corner to test the speakers, camera, and microphone.</span>

![1.png](https://wechatapppro-1252524126.file.myqcloud.com/help_document/image/ueditor/49718400_1606726936.png ".png")

**<span style="font-size:14px;">(1) Speakers</span>**

<span style="font-size:14px;">Click to test the speakers. If you can hear sound, it means the speakers are working properly. If you can't hear sound, you can switch the speaker device and test again.</span>

![2.png](https://wechatapppro-1252524126.file.myqcloud.com/help_document/image/ueditor/72751300_1606726942.png ".png")

**<span style="font-size:14px;">(2) Camera</span>**

<span style="font-size:14px;">After selecting the camera device, if you can see the video image, it means the camera is working properly.</span>

![3.png](https://wechatapppro-1252524126.file.myqcloud.com/help_document/image/ueditor/14043800_1606726952.png ".png")

**<span style="font-size:14px;">(3) Microphone</span>**

<span style="font-size:14px;">After selecting the microphone device and speaking, if you can see the volume fluctuate, it means the microphone is working properly.</span>

![4.png](https://wechatapppro-1252524126.file.myqcloud.com/help_document/image/ueditor/85957400_1606726958.png ".png")