This Bluetooth receiver integrates both a 3.5mm jack connector at the output and a second 3.5mm jack input for connecting a microphone. It is thus possible to use this module to stream your music from your smartphone but also to answer incoming calls from your phone. A button on the module allows you to answer when you receive a call. In addition, the integrated Bluetooth chip supports Bluetooth version 5.0 as well as aptX. The module thus ensures increased transmission rates and stability.