[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [Cast](./puppeteer.protocol.cast.md) > [StartTabMirroringRequest](./puppeteer.protocol.cast.starttabmirroringrequest.md) > [sinkName](./puppeteer.protocol.cast.starttabmirroringrequest.sinkname.md) ## Protocol.Cast.StartTabMirroringRequest.sinkName property Signature: ```typescript sinkName: string; ```