To connect your SCUF prestige to Mac OS, use the following steps.
Navigate to your Bluetooth device settings menu and ensure Bluetooth is turned on.
Press and hold the Wireless enrollment button (indicated with 3 curved lines) on your controller for a few seconds until the Xbox button begins blinking.
The Prestige will be identified as "Xbox Wireless Controller" in your system's Bluetooth Devices list.
Select "Connect" in your system's Bluetooth Devices list to connect your Prestige controller. Your controller will sync within a few moments and the Xbox button will become solid.
Your controller will be listed as a paired device within the Bluetooth Device list on your system's menu bar if "Show Bluetooth in menu bar" is selected.