Using Seeed Studio XIAO nRF52840 I would like to create a bluetooth remote control for an Android device.

Using Seeed Studio XIAO nRF52840
I would like to create a bluetooth remote control for an Android device.
Using Seeed nRF52 Boards
#include <bluefruit.h>
#include <Adafruit_LittleFS.h>
#include <InternalFileSystem.h>
#include <Adafruit_TinyUSB.h>
#include <stdlib.h>
I’m using

You can use the remote control to operate up, down, left, right, enter, etc.

but
Music play, pause
next song
previous song
There are no matching key codes.

I’m a beginner so I don’t know how to deal with it.
If anyone knows a better way please let me know.