Proudct details:
1.UNWIRE AND UPGRADE for your QC 25 headphones to wireless functionality using this airMod bluetooth adapter
2.Apple + Android Compatible: easily access the controls (volume, song skip etc.) and still enjoy the serenity of the headsets noise cancellation feature
3.PLAY ON, the internal battery provides up to 8 hours of uninterrupted playback and talk time
4.Built-in mic and controls makes switching from phone calls to music a breeze (apple / android compatible)