# 1. 如何从手机 setting 界面判断 LEA/A2DP/HFP有connected

<span style="color: rgb(32,33,36);">from google:</span>

<span style="color: rgb(32,33,36);">The LEA connected in the Settings UI when this "LE Audio" toggle on .</span>

<span style="color: rgb(32,33,36);">![](images/1.+如何从手机+setting+界面判断+LEA_A2DP_HFP有connected_e5fed7ed.jpg)</span>

<span style="color: rgb(32,33,36);">if you turn off the "LE Audio" toggle off. you will see the options for A2DP/HFP , that means it connected to A2DP/HFP.</span>

<span style="color: rgb(32,33,36);">![](images/1.+如何从手机+setting+界面判断+LEA_A2DP_HFP有connected_dede7884.jpg)</span>