If you're looking for a way to kill some time while you wait for your Apple AirPods to arrive on your doorstep this month (or next month, or the month after that), iFixit has just posted a teardown of the $159 wireless earbuds and their battery-charging cradle. The news is not good for people who like to do their own repairs.

Once you open the AirPods, there's really no going back; iFixit had to first apply heat to loosen up the glue and then use a knife and guitar pick to pry the things open. Unlike Apple's wired EarPods, which are mostly empty space on the inside, the AirPods are densely packed with circuit boards, chips, and batteries.

The metal cap at the bottom of each AirPod serves as a charging contact and also houses each pod's microphone. The pods' batteries are each housed in the white stem area, and both pods contain their own tiny 93 milliwatt hour batteries. The densely packed circuit board in each AirPod houses the Apple W1 wireless chip, a small SoC from Cypress, a stereo audio codec, and a Texas Instruments power management chip; there are also proximity sensors and, of course, the speaker assembly itself.

The charging case is about what you'd expect on the inside, though actually opening it up also involves utterly destroying it. A small logic board, a modular Lightning port, and a 1.52WHr battery all live inside the sleek white case; iFixit had to cut it apart with a saw to find all of this out.

In the end, both the AirPods themselves and their charging case earned a zero out of 10 on iFixit's repairability scale, indicating that the headphones aren't in any way user-serviceable. Low scores from iFixit are normal for most Apple products, but zeroes are rare—it's usually at least possible to access and replace the batteries in iPhones, iPads, and MacBooks with a little effort. If you're having problems with your AirPods' batteries, you'll have to get Apple to replace them for you—battery replacements are free if the AirPods are still under warranty and cost a total of $147 otherwise—$49 for the charging case and an additional $49 for each AirPod.

Listing image by iFixit