Cadenza R hearing aid with features of Open-Fit style, small size, hearing comfortably, high clarity, it is non-programmable hearing aid. More convenient for dispenser sales, and also, Open-Fit style makes users hear comfortably and clarity. New design BTE-OE hearing aids with open-fit style, Intelligent noise reduction up to 13 dB and intelligent feedback cancellation features. Cadenza R use Zinc-Air battery 312A, with push button for VC and program switch, short press to change volume, long press to change programs. Suitable for mild-to-moderate hearing loss patients.