[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [Emulation](./puppeteer.protocol.emulation.md) > [UserAgentBrandVersion](./puppeteer.protocol.emulation.useragentbrandversion.md) ## Protocol.Emulation.UserAgentBrandVersion interface Used to specify User Agent Cient Hints to emulate. See https://wicg.github.io/ua-client-hints Signature: ```typescript export interface UserAgentBrandVersion ``` ## Properties | Property | Type | Description | | --- | --- | --- | | [brand](./puppeteer.protocol.emulation.useragentbrandversion.brand.md) | string | | | [version](./puppeteer.protocol.emulation.useragentbrandversion.version.md) | string | |