I believe Costco’s Brio 4 is similar to the Naida Marvel model of Phonak.
Naida Paradise is the latest model from Phonak, and the device Naida P-UP (“Ultra Power”) delivers up to 141 peak output which seems to be close to the highest available for BTE devices. I wonder if anyone knows whether Brio 5 is updated to be similar to the Paradise model.
Behind-the-Ear Hearing Aid - Naída Paradise | Phonak
The powerful Naida Paradise BTE hearing aid provides next level sound, connectivity to smartphones, TV and more, and empowering smart apps.
[ There’s nothing like the sound of Paradise]
The New Phonak Paradise vs Marvel17
New technology There’s a new player on the block, and he sounds simply ‘heavenly’: the Phonak Audéo Paradise. Released mid-August this year, Paradise takes after his older brother – Marvel – and builds on its exciting features to take on our modern,...
[ The New Phonak Paradise vs Marvel]
Impossible to choose? Phonak Marvel vs. Phonak Paradise: the 10 most b
The Swiss Phonak is one of the leading hearing aid manufacturers in the world. They are continuously improving and adapting the techniques in their hearing aids. Thus, in November 2018, they introduced the Marvel. The device with the latest...
[ Impossible to choose? Phonak Marvel vs. Phonak Paradise: the 10 most beautiful differences!]
Thanks.
You’re ignoring this member’s posts.
Naida UP P90’s, are by some distance the best aids I have ever owned, closely followed by Naida M70’s SP BTE, a Super Power aid, for severe/profound loss, smaller and slimmer in overall size, with the 13 batteries, you may well like these, but is imperative, as it makes a big difference! I would say, my main reasons for liking Naida P90’s, in a nutshell, Clarity & Connectivity, the Bluetooth is excellent, I think you can pair, up to 8 simultaneous connections, and if you are an anorak/geek like me, then that is awesome…… But, as always, your /A.uD is the single most important part of the equation, in order to get a good fit. Personally, I dabble in , and I basically know enough to get reasonably good fit, and I know this works for me, but DIY is not for everyone! We all hear differently, and what works for you, may indeed not work for me, it is all about compromise, and reasonable expectations…… Try the Naida P90’s UP, or indeed the Naida M70/M90 SP, you may like either or you might like both? Good Luck, cheers Kev 
unfortunately, I ordered the double walled tubing via my A.uD, so I don’t actually know where she got them, they basically look like normal tubing, but the walling is twice the thickness, have search via the web, I will have a look later