Apparently, the over-ear headphones Apple AirPods Study will be available before the deadline.
The new entries on the AirPods Study suggest that the mass production will start shortly, for a planned launch between the summer and the month of October. The production should be carried out in Vietnam and could start in the next few days.
Among the partners of production there would be Unitech Printed Circuit Board and Compeq Manufacturing. It is not excluded that Apple may introduce these headphones to the WWDC in June, then release them a few weeks later.
The code name is B515, the price provided for 349$. It would thus be of headphones, medium-high, which would be in direct competition with the proposed solutions from Bose and Sony, with active noise cancellation.
Remember that Apple is also working with other headphones to be launched in the coming months.