The AirPods were announced alongside iPhones 7/7 Plus in September, and were expected to hit the market in October. As we well know, they were late.

Although they have already painted a boring rumor and another betting that they would arrive in December (which may still happen), for now we still do not know exactly when Apple's fully wireless headphones will begin to reach consumers.
Today the Wall Street Journal brought possible information regarding this delay. According to sources of the vehicle, Apple would be working day and night to solve problems of audio synchronization between the two parts, that is, make sure there is no delay (delay) between the left and the right side, since the communication between them takes place via Bluetooth.
It is curious that this was not a problem raised by any of the international journalists who had preliminary access to AirPods shortly after their announcement. In general, everyone praised the headphones a lot and, fortunately, said that they * don't * fall out of the ear when we are running / exercising (which was a big doubt).
In addition to the synchronization issue, Apple would also be working to decide exactly what happens when the person loses one of the parts, or maybe only one of them has a battery left.
unanimity on the planet to say that this delay was too ugly for Apple. This was certainly not in the plans of the company, which is now losing a great deal boom Christmas / New Year sales. But on the other hand, it's good to know that Ma is working hard to get AirPods to market without any known problems.
We hope it doesn't take much longer
(via 9to5Mac)
Update · 12/09/2016 at 22:32
John Gruber, from Daring Fireball, one of those who received a pair of AirPods since the launch and claims that he never had a problem of synchronization between the parts. As a matter of problem, he mentions only about 3-4 times that in months when one of the pieces stopped playing and was just put it back in the case for the reproduction to normalize.
According to Gruber’s own sources, Apple’s big problem would actually have to do with difficulties in mass manufacturing AirPods. It makes sense, but at the same time I wonder if it would not be better to put the product on the market with little stock and, little by little, to normalize the situation. Isn't that how Apple always does, anyway?