

The Apples and Googles and Microsofts of the world are all about offering cloud services to hold your precious data, for what is essentially “free” to the end user. Push you into their services with dark patterns, make it a pain in the ass to do without them, join the cloud, it’s awesome.
Unfortunately all that comes with a catch - when automated services fail, and self-service solutions fail to resolve it, you have zero chance or ability to contact a real live human who can apply reason and judgement to sort out the issue. You and all your data are basically fucked at that point.
It’s BLE - Bluetooth Low Energy.
Basically devices with BLE can listen for a wake-up command and turn on, similar to the “magic packet” of wake on Ethernet.
Super convenient for “find my device” applications, also nice to be able to connect and activate the device without having to press a power button like a peasant.
It also means that most devices with BLE end up flat within a month. I had a speaker with BLE and had to deliberately download a much older version of the Android partner app to turn it off, as they dropped the option to do so in later versions for “convenience”. With BLE on it would be flat in about 6 weeks regardless of whether I’d used it or not , which really ruined ad-hoc usage for me.