---
title: IOBluetoothPDUProtocolID
framework: IOBluetooth
role: symbol
role_heading: Global Variable
path: iobluetooth/iobluetoothpduprotocolid
---

# IOBluetoothPDUProtocolID

The protocol of the text message content.

## Declaration

```swift
let IOBluetoothPDUProtocolID: String
```

## See Also

### Message Information

- [IOBluetoothPDUUserData](iobluetooth/iobluetoothpduuserdata.md)
- [IOBluetoothPDUTimestamp](iobluetooth/iobluetoothpdutimestamp.md)
- [IOBluetoothPDUType](iobluetooth/iobluetoothpdutype.md)
- [IOBluetoothPDUEncoding](iobluetooth/iobluetoothpduencoding.md)