On a white banner background aligns the Phonak Marvel Hearing Aids labelled with its name and features highlighting the M312 as shown encircled red

The Marvel Hearing Aid range from Phonak uses the Direct Bluetooth technology to link with any mobile phones such as Apple iPhones and Android mobiles. The Phonak Marvel M 312 hearing aid allows wearer to stream audio and phone calls directly to both ears. The M312 device uses the size 312 hearing aid batteries to function with efficiency.