# 1.3.2.2 extended feature {#extended-feature}

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Google 官方文档：

[https://developers.google.com/nearby/fast-pair/fast-pair-certification-guideline#4_feature_certification_criteria](https://developers.google.com/nearby/fast-pair/fast-pair-certification-guideline#4_feature_certification_criteria){.external-link rel="nofollow"}

Realtek 内部整理文档：

[1 Extension Feature Test Guideline(中文文档) - BT_Market - WIKI](https://wiki.realtek.com/pages/viewpage.action?pageId=374584696){rel="nofollow"}

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