Sending files with ESP32 with Bluetooth

[AndressaRV]

Hi Guys,
At this moment, my program is taking pictures with the ESP32-CAM and saving the pictures in different folders that are named with the date and hour, and the control of the captures is made by a android app. The app have a button for taking pictures.
Now I want do add an option to download these folders, like, when the sequence of captures is over, it automatically sends the folder to the phone for downloading in phone storage. Someone can help?

Obs: Im using BluetoothSerial library

Hugs from Brazil