Hi Sparklegram - My Resound LinX were the first generation hearing aids that promoted the streaming into my iPhone. They are small behind-the-ears, digital and yes have the plastic tube that connects to my ears with the replaceable buds. I have some residual hearing so these hearing aids help me with what I don't have. Each year Resound/GN updates their Hearing Computers to do more for for those who can't hear. Remember, these are mini computers that have many components to them. https://www.resound.com/en-us/hearing-aids/digital. Check out their website that shows what is happening behind the scene and the latest models that are available. I have not updated mine because mine are still appropriate for me.
Each night when I take my hearing aids out, I take the buds off and wash them by hand with soap and water and then put them and the hearing aids, open the battery container - and put them all into my cleaner for the night. This allows for the aids, batteries and buds to last longer and for my ears to not itch because I am allergic to anything that sits near or on my ears. (they are plastic and draw moisture, bugs, etc.) Remember, these instruments are computers and need to be well taken care of and if you want them to work for you - they need to be properly taken care of to function for you in the most optimum way. Just like you take care of your home PC, laptop, cell phones, etc...your aids, CI and hearing devices are just as valuable if not more. Eloise