I originally ordered the TX-5 model that I liked so much I e-mailed about 20 of my friends to brag about. One of those replied, asking how those compared to the new Proton Plus model that was 20% smaller. Since the TX-5 aids kept falling out of my ears, I called Bossa and the helpful attendant convinced me to try the Proton Plus, giving full credit for what I had paid for the TX-5, plus $48 difference to get the $197 Proton Plus aids. I’m really glad I did! the smaller Proton Plus aids stay in my ears and the sound is significantly better. Thank you, Bossa, for offering great hearing aids for the lowest prices available!!!
Charles