I do have an iphone 6 and i am under the impression that i can use that as a remote for some hearing aids including the Cala and KS7. I am not really familiar with the other accessories you are talking about, what they do and how much they cost. Without the hearing aids i hear good with both the land line and wireless by holding the phone to my ear.
I have had several hearing tests performed including one at Costco. The HAS talked about the Cala and the KS7 but he was suggesting that i seriously consider the Cala. He made no offer for me to try any on that day, it was a Saturday and they were busy. I have talked with 2 other hearing aid offices to get an idea of what is available and the cost and to confirm the hearing test at Costco.
I have made an appointment with Costco to discuss the hearing aids they sell and the lady that i talked with on the phone indicated that i could walk around the store with them on to see what i thought. The man that gave me the hearing test said with the Cala i can stream to the hearing aids without any other equipment. of course for that benefit it will cost about $900 more than the KS7. I am not sure if the ability to stream is something i would use regularly and if it really makes a difference in understanding all the dialogue on the TV.
I have a home theater set up and my receiver has blue tooth, i have not checked if it is possible to pair hearing aids with a Denon BT receiver, i have paired my iphone and ipad with the receiver. I also have blue tooth in the car with telephone conversations coming thru the sound system of the car.
I am sure its obvious that i know very little about hearing aids since this is my first experience. While i could swing the Cala financially, i would prefer not having to spend the money if it is not necessary to have a satisfactory improvement in hearing from the hearing aids.
I had a session with a local audiologist and when they told me the prices ranging from $4800 to $7000 (when i woke up, i found someone beating on my chest and giving me mouth to mouth :):)) had i not been a customer of Costco and passed the brochure rack a number of times, i suspect that i would have just gone home and asked people to speak louder and turned up the volume on the TV.
I really do appreciate the advice and suggestions you all have been providing me