Howdy,
The first program are for normal conversation, 90% of your everyday stuff. The second program is for noisy enviroments. Restaurants, parties...etc. The third program is for music. This one seems to be the most sensetive. I use this one for Church because our whole liturgy is sung by the choir and the priest. It works great...but I have to turn the volume down or it vibrates too much. The fourth program is for the TV.
I believe that there are many more programs that can be utilized. I imagine this gives the audiologist a lot of flexability for folks that find some programs too sensetive for them.
My TransEar has room for four.
I use them all. I did find that since I took a week off from wearing my TransEar while I waited for the wire to be replaced, that I can turn the volume up to 3 and sometimes 4 without too much vibration.
This allows me to hear much better. I watched the movie "DeJaVu" tonight and they played "Don't Worry Baby" by the Beach Boys on the soundtrack...it was like total stereo, pre deafness. I had the volume up to 4 on the TV program.
I could have listened to that song all night....
Dan