[Home](./index.md) > [@digitalpersona/devices](./devices.md) > [CardsReader](./devices.cardsreader.md) > [unsubscribe](./devices.cardsreader.unsubscribe.md) ## CardsReader.unsubscribe() method Stop listening for card reader events. Signature: ```typescript unsubscribe(reader?: string): Promise; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | reader | string | an optional name of a card reader to stop listening. If no name is provided, the API will stop listening all card readers. | Returns: `Promise`