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Input:
Question: Will this device work with hearing aids.  We do not want to use headphones to deliver sound to my wife.
Document: This wireless set lets me use my favorite earphones wirelessly with my TV and audio systems. Set up was easy, and the sound is clear and easily adjustable. There is no hiss or static. This device lets me appreciate TV and music at &#34;realistic&#34; levels, whereas my wife prefers it just above a whisper.
But number 1, above, is such a rousing success that I can already rate this product with five stars even if it turns out they can't work directly with my hearing aids at all.The manual is well written and set up was easy. Even used with just a five-dollar pair of Panasonic headphones, the Sennheiser system worked great: clear, clean audio with no static and no dropouts--none at all.
I have since learned that my hearing aids cannot be set up with a manual t-coil switch, so I could not get them to work with my Sennheiser system . . . UNTILL I mounted two small pieces of magnetic tape on my glasses right against where my hearing aids are. THAT activated the t-coils in my aids and--presto--with my Sennheiser system I could hear the TV directly into my hearing aids with no headphones necessary.
So the thought of eventually getting the benefit of custom hearing aid sophistication plus wireless volume control without blasting other TV viewers led me to the 840. Currently using inexpensive headphones ( hearing aids out )which plug into the body pack using standard jacks ... works great except I don't do well hearing others in the room comment on anything during programs. Could also use inexpensive ear buds ( hearing aids out ) if tire of wearing head phones.
This is the third hearing assist product that I have purchased for my mother, and so far, it is the best. My aging mother likes the fact that she hears the sound through her hearing aids, and does not have to wear earphones or use ear buds. For the first time ever, she voluntarily turns off the subtitles when watching movies or television shows.
I bought this for my dads 70th birthday because he has a hard time hearing TV shows and he loves this! He can understand what people are saying now on the TV. He uses this with little earbud headphones that came with his iphone but I also bought him the wired Seinheiser HD65 TV headphones to use with this which work great, too. He's tried other headphone products and this has been the best. So far after one month, no problems.
This device works well and enables me to use my own headphones to hear. Using FM transmission rather than infrared is a big advantage, because line of sight is not required, and there is no signal interruption. Not a cheap device, but I think we'll worth the cost.
My husband has an accoustic neuroma. Hearing aids don't help him so we got him this device to help him hear TV more clearly and so that I was not being blasted out of the room by the volume. It works very well.
I have a wireless headphone listening system made by Sennheiser that I got to hear better  while watching TV. It worked fine but the headphones are bulky. When I heard about the loop system I first bought a neck loop that I could use at church because they already had receivers available that would work with my neck loop. I was so impressed  that I bought the Sennheiser wireless TV listening system from Amazon.
My older in-the-ear hearing aids did work, but sounded tinney. Also as the transmitter moved or your head moved to the side, the volume would switch from ear to ear.
Answer: Yes, if your hearing aids are equipped with a T-Coil. Ask your Audiologist.