Audio recording at 44hkz with Bluetooth (Moto Boom 2) on Android

I bought a Bluetooth Boom 2 headset.
I want to have my hands free while recording the voice on my Android. To be able to walk without obstacles of cables. The videos are made on a PC and audio files that I wish to record using the phone (Droid Turbo OS: Android 4.4.4).

But until now, the audio quality is mediocre (although I have scored 44khz on the recording application: Voice Recorder Pro). I have bought the Boom2 specifically for this type of recording.

Is there a way to effectively save on Android 4.4.4 with high quality 44khz sound? Thank you.
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