---
title: Null Connection ID
framework: externalaccessory
role: collectionGroup
role_heading: API Collection
path: externalaccessory/null-connection-id
---

# Null Connection ID

The ID for an unconnected accessory.

## Topics

### Constants

- [EAConnectionIDNone](externalaccessory/eaconnectionidnone.md)

## See Also

### Getting Connection Information

- [isConnected](externalaccessory/eaaccessory/isconnected.md)
- [connectionID](externalaccessory/eaaccessory/connectionid.md)