Charging & Audio: 2 in1 design, combine Micro USB to 3.5 mm aux cable and USB A charging cable together, you can listen music and charge with only one cable.; This audio charging cable is usually used for Bluetooth speaker with Micro USB Port. So you need check your device before purchase it.;
Plug & Play: Micro USB male is connect Bluetooth speaker, 3.5 mm Audio Plug is connect phone, laptop, MP3, MP4 etc. Not support car AUX input.;
Plug & Play: The USB-A male port could connect plug adapter and charge for Bluetooth speaker.
(NOTE: Not support phone data & photo transmission and audio output;
Note: please be careful view our picture description and right distinguish Micro USB and Mini USB. This is Micro USB male.