Those same sources added that Apple is putting together AirPods with water resistance (mainly against rain or sweat, not for swimming or anything like that) and noise-cancellation. That will most likely mean transitioning the production work for the upcoming models away from Inventec, which built the first HomePod and majority of the first-gen AirPods units. Apple is said to be looking into including a heart-rate monitor and other biometric sensors with future AirPods as well.
This news comes in the middle of a big year for Apple's auditory efforts.
Apple is reportedly working on a trio of improved audio products that'll take existing offerings to the next level.
In any event, Bloomberg says these upgraded AirPods are expected to cost more than the existing pair, which go for $159, but will likely live alongside them as an upgraded model rather than a full-on replacement.
Apple may be stepping up its sound game. Apple is also working on a wireless charging case that's compatible with the upcoming AirPower charger. They will allegedly sit above the Beats headphones sold by Apple. They were originally scheduled to arrive by the end of 2018 but development challenges pushed back release. However, given Apple's recent track record of delayed product launches, it is entirely possible that we will see the launch of the headphones being delayed once again. It does say, however, that Apple is expanding its partnership with Taiwanese manufacturer Foxconn-which manufactures the bulk of Apple's iPhones-to boost production of its future audio devices.
For the over-ear headphones, Apple has discussed working with Tymphany, a Primax Electronics Ltd. subsidiary that makes consumer and professional audio systems, according to a person familiar with the situation.