UM Smart Sound App and  Firmware Files

Fully supports the IOS  & Android Operating systems

  

Android  UM Smart Sound App

umsmartsound_release_v1.0.10_9.apk      2026/01/26

Android  Firmware Files

①V2.3.8_CS289_64M_ClassAB    2023/11/09

②ClassAB_v4.3.3 for   Sumsung     2023/06/19

 

Reset to factory settings: Triple-tap & long press for 10 seconds