pxt-calliope/docs/reference/devices/tell-microphone-to.md
2016-06-19 05:28:46 -07:00

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# tell microphone to
The tell microphone to function.
Access the audio recording capabilities of the device using the ``tell microphone to`` function.
The functions in the antenna namespace allow the BBC micro:bit to communicate with a separate (remote) device, such as a smartphone, over Bluetooth (Smart). The set of supported events will depend on the remote device and the BBC micro:bit apps available for the remote device.
### Block Editor
![](/static/mb/tell-microphone-to-0.png)
### JavaScript
```
export function tellMicrophoneTo(event: string)
```
### Parameters
* event - an event identifier
### Event values
* play
* stop
* pause
* forward
* rewind
* volume up
* volume down
* previous track
* next track
### Examples
To tell the connected device to start recording audio
```
devices.tellMicrophoneTo("start capture")
```
To tell the connected device to stop recording audio
```
devices.tellMicrophoneTo("stop capture")
```