Sony's alleged upcoming WF-1000XM4 ANC in-ear earphones have reportedly been leaked in images online, along with its expected release date. A report from The Walkman Blog shows images of the earphones, that seem to feature a more compact and round design as compared to the WF-1000XM3 earphones. The charging case seems to be slimmer too, and reports suggest it will support wireless charging as well. Moreover, the FCC certification for the WF-1000XM4 earphones mentions that they will be available from June 9.