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# CBPeer

An object that represents a remote device.

```
class CBPeer
```

## Overview

The [`CBPeer`](/documentation/CoreBluetooth/CBPeer) class is an abstract base class that defines common behavior for objects representing remote devices. You typically don’t create instances of either [`CBPeer`](/documentation/CoreBluetooth/CBPeer) or its concrete subclasses. Instead, the system creates them for you during the process of peer discovery.

Your app takes the role of either a central (by creating an instance of [`CBCentralManager`](/documentation/CoreBluetooth/CBCentralManager)) or a peripheral (by creating an instance of [`CBPeripheralManager`](/documentation/CoreBluetooth/CBPeripheralManager)), and interacts through the manager with remote devices in the opposite role. During the process of peer discovery, where a central device scans for peripherals advertising services, the system creates objects from the concrete subclasses of [`CBPeer`](/documentation/CoreBluetooth/CBPeer) to represent discovered remote devices. The concrete subclasses of [`CBPeer`](/documentation/CoreBluetooth/CBPeer) are [`CBPeripheral`](/documentation/CoreBluetooth/CBPeripheral) and [`CBCentral`](/documentation/CoreBluetooth/CBCentral).

## Topics

### Identifying a Peer

[`identifier`](/documentation/CoreBluetooth/CBPeer/identifier)

The UUID associated with the peer.


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