I know you need a newer machine with Bluetooth 2.1 (I think), so your MBA may not have the right Bluetooth. I know my 2012 MBP also doesn't support it, otherwise I would have bought them by now.
No, I was wrong
Let me revised
with the same apple ID, my macbook no need to pairing (from bluetooth menu/shortcut). I tried it again just now
Here's the condition :
My AirPods is connected to my iPhone. I start my MacBook, click on the sound menu shortcut, wait for a while around 2-3 seconds, then AirPods option will pop up (this is what I did wrong, previously, I didn't wait, and I assume it was not connect and needed pairing again from bluetooth shortcut). After the menu pop up, I just click on the airpods to make it connected to my mac (which need around 3 seconds as well)
Now ... if my phone ring, and I want to use my airpods to answer, I cannot do it directly. I must pick up the phone, then swipe up the control center menu, and click the AirPods for it to connect, and it takes 3 seconds, sometimes more than 5 seconds - sometimes it failed - sometime I got impatient and just pick up my phone and put it my ear (meanwhile on the other line, keep saying hello, hello, helloooooo)
Then ... I hang up the phone, in order to switch back to mac, I need to re-click again the sound shortcut, wait 3 seconds for the AirPods to pop up, then click the AirPods
Maybe I did it wrong, not so sure, but this is what I experienced.
Well, not as my expectation, but maybe it's already "fast" comparing to other bluetooth earphone, not so sure
In my opinion :
1. the so called "magic pairing", meant we don't need to paired manually from bluetooth menu for each devices (under same apple id) as other usual bluetooth headset. We only need to click the click the AirPods on the control center, which for me, it's just "shortcut" to bluetooth menu. It will best if the "shortcut menu" can be placed at widget and caller id screen as well (so we could switch the airpods connection immediately to our phone)
2. Sometimes , the connection needs 3-5 seconds in average, sometimes more, if we switch between devices. Not so smooth as per my expectaion.
3. After few trials with several devices, I can confirmed that, the AirPods (once we took out from the case - or sometimes we need to took out and put in again into our ear in order for the airpods to be activated), will re-connect to the last connected device.
4. the airpods activation worked based on pressure at the AirPods speaker. If we held the speakers with our hands or palm a little tighter (coop the speakers with our hands), the airpods will be activated even out from our ear
5. logically, for non laptop, to switch back from iPhone to laptop, we only need to click the bluetooth shortcut menu and reconnect. Not much different from MacBook, which need to click on the sound shortcut menu and click AirPods. I don't have any windows laptop to test this. Maybe slower, but i guess in seconds count , no ?
6. sound quality (streaming music or answering phone call, from our side or other line), all good, no complaint at all
7. not hurting my ear for long time wearing (at least for my ear)
8. can stay inside my ear without dropping out (don't care about the odd appearance for some people)