As the the HP-503/505 doesn't have Bluetooth, it is not possible to stream music in this way.
If you want to play music from your smartphone on your HP-503/505, you'll need to use an audio cable to connect it to the piano.
As the the HP-503/505 doesn't have Bluetooth, it is not possible to stream music in this way.
If you want to play music from your smartphone on your HP-503/505, you'll need to use an audio cable to connect it to the piano.