Hello. First, I had a whole paragraph of my thoughts written to share almost completed , when I arrowed out to check on a weblink and lost the whole message. So, I am starting over: This is not a criticism, but a sharing of an experience that might be helpful to others. My left hearing amplifier did not seem to work (no sound amplified ) for a couple of days. Before I decided to contact the customer service representative , Kaven, I decided to change the sound tube and the ear dome. When I pulled the tube and dome out of my ear and examined them closely, I found a tiny piece of fuzz stuck to the underside of the eardome. When I changed the dome, the amplifier started working again. I share this just to left folks know that was my experience. I want to give Kaven high praise for corresponding back very quickly to my inquiries and questions while I am learning how to use thies hearing amplifiers. I just wish I could talk to him by way of an old fashioned telephone ! My experience so far (about one month) has been that the amplifiers work well when I am watching TV or in a small group conversation. In other cases, the amplifier makes the other sounds too loud, so I turn them off temporarily while still in my ears. Also, I am still having trouble adjusting them to avoid the "whistling sound." I like the fact that these have rechargeable batteries by using USB connections vs. the tiny batteries that have to be manually changed ever so often. However, my experience is that the charge does not last as long as is stated in the user manual on page 10 of 20 to 24 hours. At best, mine have lasted about 16 hours and that is with them being in my ears but not always turned on due to the circumstances I am in. Also , it was very helpful for Kaven to send me a .pdf file download of the users manual so it can be printed in a larger size pages. The size of the paper Users Manual is a bit small for tired eyes. It might be helpful to have that download link of the users manual attached to the description of the hearing amplifiers right on the ebay page of description for the devices. For folks shopping, having a readable users manual to review before one decided to buy the product, I think would be VERY helpful. Now, I am going to hit the "Submit" button before I lose this paragraph again. Judy G., Clinton, TN
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