A picture of the Audeo Marvel 312 M70 Bluetooth hearing aid on a white surface

The advanced level Phonak Audeo Marvel 312 M70 uses the Bluetooth Classic technology that allows any mobile devices connect to the hearing aids. Apple devices, iPhone, Android smartphones and other audio content gadgets can directly stream the sounds with high fidelity and in both ears.It also introduced the advanced e-solutions app where remote adjustments can be performed by the hearing aid specialist.