Headset Volume в Android Market

Headset Volume (v. 1.5) Разработано Hourglass Apps

Avoid the hassle of reaching for the volume button on your Android device every time you insert or remove headphones. With this app running in the background it will remember the volume you set while your headphones are plugged in to use it again the next time you insert them. Then when you remove your headphones it will switch back to the normal volume settings.
Unlike some other similar apps, this one does not require an additional mixer GUI to configure the volume.