Airpods can break, provided that the act of banging and dropping them for a long period of time and not taking care of them in time. And if they fall and break, you can go for a warranty, and they can still be fixed after the warranty, as long as the core components are not broken.
Before AirPods, devices like Surfacebooks and MacBooks were hard enough to fix, as they had a repairable score of just 1 (typically, IFixit's repairable score is 10, with lower scores being harder to fix). However, when iFixit published the AirPods headphones teardown, it was the most difficult device to repair at the moment, so to speak, there is no possibility of repair, and its repairable score is 0 points.
Expanded InformationThe AirPods are hard to repair because it's impossible to remove parts without destroying the shell; in addition, both the headphones and the charging case use only adhesives on the outside, which is the most headache-inducing part of the device.
While Apple officially said that the cost of repairing damage to AirPods headphones is $69, the difficulty of repairing them shows that Apple is more likely to just give you new headphones, and Apple often does this kind of thing with direct replacements anyway.
Apple AirPods headphones mainly use Bluetooth technology and Apple's W1 chip to connect wirelessly, using a microphone, optical sensors and a motion accelerometer for in-ear detection, so it can detect which headphones you're wearing or taking off, plus it uses a beam-forming microphone plus an additional accelerometer to filter out outside noise. This wireless headset is being touted as the smartest headset in the world today.