Three years ago, Google simplified the pairing of wireless headphones with Android Fast Pair, a new protocol that uses Bluetooth location to detect the headset as soon as it is brought closer to the mobile and pair it quickly and easily.
In the middle of this year, Google improved Quick pair
Here is the new interface of Android Fast Pair
Since the end of 2017, bring a compatible Bluetooth headset closer to Quick pair, a normal notification to associate the new accessory, but now the notification type has changed.
Android Fast Pair now displays a big notification
This new interface and this new behavior are practically the same one currently found in iOS
With this new design, the link notification no longer goes unnoticed because it is persistent. In addition, the pairing process is also done from this pop-up window. Once the new device is paired, to display the battery level of the headset or case, the normal notification above will appear as before.
Via | 9to5Google