GitHub - jguice/mac-bt-headset-fix: Small mac application that fixes broken bluetooth headset control by listening for events and sending them directly to apps
Key Mapper is an app to remap volume, navigation, and Bluetooth buttons
Remapping Bluetooth Headset Buttons : r/AutoHotkey
Button Mapper: Remap your keys - Google Play のアプリ
Button Mapper: Remap your keys APK Download for Windows - Latest Version 1.51