Apple’s been rumored to be working on a pair of its own over-ear headphones for a while now, but details on the rumored product have been pretty slim beyond the basic concept. A newly granted patent, titled “System and method for automatic right-left ear detection for headphones,” may hint at what Apple is planning, though. It describes a pair of headphones that would be reversible, automatically adjusting which ear cup is the right or left based on how you put them on, via 9to5Mac.