Unitron Tandem – Tandem is Unitron’s new wireless Cros / BiCros system that allows people with single sided deafness to hear again on both sides.
Basically, how the technology works is sound is picked up by a transmitter on the ‘dead’ side and wirelessly streamed across to the ‘good’ ear, which may or may not have some hearing loss.

This type of hearing system allows the wearer to be aware of sound all around them, including hearing sounds from the dead side and being aware of the direction of sound, and generally being able to participate more fully in social situations with far more confidence.
Quantum - Moxi - Shine - Tandem - 360+ - Discontinued Hearing Aids