JabraLibre

A minimal, fully offline replacement for the Jabra Sound+ app, built around the

one feature that matters most: switching between Noise Cancelling, HearThrough

and Off.

The earbud button already cycles those modes — as long as you are wearing the

left bud. Listening with only the right one, in bed for instance, leaves no way

to switch. That is what this app is for, and why it ships a Quick Settings tile:

pull down the shade, one tap cycles the modes. It works on the lock screen, so

you never have to open the app at all.

Features

Switch Noise Cancelling / HearThrough / Off, from the app or a Quick Settings tile

Shows all three battery levels separately: left bud, right bud and charging case

Picks up mode changes you make with the earbud button

Reconnects on its own when you take the buds out of the case

Says plainly when the buds are not reachable instead of pretending

English and German

Offline by design

The app has no INTERNET permission at all — not an unused one, none. It cannot

phone home, there is no account, no tracking, no Google Play Services, and no

analytics. It talks to the earbuds over Bluetooth and to nothing else. That is

also why there is no firmware updater: even a passive update check would need

network access, and that would defeat the point.

How it works

The Elite 10 talks to Sound+ over Bluetooth Classic RFCOMM, using a protocol

that was reverse-engineered from a capture of the phone's own Bluetooth traffic.

The findings are documented in the project's README so anyone can check what the