Unlocking your iPhone or Mac automatically using your AirPods might be a thing in the future — scientists have proven that 'Ear ID' can work, detecting who you are based on your unique heartbeat, and your buds don't even need a heart-rate sensor to make it work
…In earbuds, they can be used for different tools: gesture controls, head tracking or spatial audio, depending on the bud. Some low-end earbuds may miss them, but generally, it's a…