---
title: "readAttributeDeviceMuted(completion:)"
framework: matter
role: symbol
role_heading: Instance Method
path: "matter/mtrbaseclustersmokecoalarm/readattributedevicemuted(completion:)"
---

# readAttributeDeviceMuted(completion:)

## Declaration

```swift
func readAttributeDeviceMuted(completion: @escaping @Sendable (NSNumber?, (any Error)?) -> Void)
```

```swift
func readAttributeDeviceMuted() async throws -> NSNumber
```