# supportedWLANChannels() An array of channels supported by the interface for the active country code. ``` func supportedWLANChannels() -> Set? ``` ## Discussion Dynamically queries the interface for the supported channels. Returns an array of CWChannel objects, or *nil in the case of an error.* --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)